CALCULATORS ON-LINE CENTER MATHEMATICS CENTER UNIT CONVERSION, SI UNITS, ADDING MACHINES, PAPER TAPE CALCULATORS, SCIENTIFIC CALCULATORS

U.S.: Saturday, December 28, 2019

Sydney, Australia: Sunday, December 29, 2019

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Currently the Calculators On-Line Center contains
over “22,125” Calculators & Spreadsheets,

over “4,420” Courses, Lectures, Manuals, Handbooks,

& “1,000’s” of Movies, Videos, Simulations & Animations

Unit Conversion

International System of Unit

Large Conversion Calculators – Over 300 Calculators

Specialized & Medium Size Conversion Calculators

Complex Mathematics

Paper Tape Scientific Calculators

Scientific, Financial, Astro-Physical,
Chemical, etc. Calculators, Wolfram’s Math Widgets

Mathematics Center

Calculators On-Line Center

Measurement (All Inclusive)

INTERNATIONAL SYSTEM OF UNITS CALCULATORS & APPLETS

INTERNATIONAL SYSTEM OF UNITS – Physical Measurement Laboratory,
National Institute of Standards

• International System of Unit is
  • “…adapted from NIST Special Publication 811 (SP 811),

• • prepared by B.N. Taylor and entitled Guide for the

• • Use of the International System of Unit…”

For more information see

The NIST Reference on Constants, Units, & Uncertainty;

Physical Reference Data or the

Physical Measurement Laboratory

• • Some examples of International System of Units Calculators include

SI Units

SI Prefixes

Fundamental Physicsal Constants

TIME AND FREQUENCY – Time & Frequency Division,
National Institute of Standards (NIST)
Multimedia Time & Frequency Glossary with Time & Frequency Standards (Text & Images).

Time & Frequency Glossary

• • “…Unlike the glossaries produced by standards committees, Time and Frequency:

• • From A to Z is not intended to be an official glossary of time and frequency

• • terminology. Instead, this glossary was created as an educational tool. Like

• • all technical fields, time and frequency has its own terminology and jargon,

• • including terms that are seldom used outside the field, and terms that might

• • have different meanings in other fields…”

For more information see

Time & Frequency Division;

Physical Measurement Laboratory or the

National Institute of Standards and Technology

CONVERSION CALCULATOR FOR PREFIXES – F. Tapson &
Cleave Books, Centre for Innovation in Mathematics Teaching,
University of Exeter, U.K.

Conversion Calculator for Prefixes

• • “…The main purpose of this calculator is for when a figure is given

• • for a unit with one prefix in place, and it is desired to see if another

• • prefix might not be more appropriate. Once the given number is keyed in,

• • and the given prefix is selected, then the suitably adjusted value is

• • shown for all the other prefixes. Also shown (at the bottom) is

• • the value in (bare) units if NO prefix is used at all…”

Conversion Calculator for Prefixes includes:

• • deca (10

¹

• • ), hecto (10

²

• • ),

• • kilo (10

³

• • ), mega (10

⁶

• • ),

• • giga (10

⁹

• • ),

• • tera (10

¹²

• • ),

• • peta (10

¹⁵

• • ), exa (10

¹⁸

• • ),

• • zetta (10

²¹

• • ), yotta (10

²⁴

• • )

• • deci (10

^-1

• • ), centi (10

^-2

• • ),

• • milli (10

^-3

• • ), micro (10

^-6

• • ),

• • nano (10

^-9

• • ),

• • pico (10

^-12

• • ),

• • femto (10

^-15

• • ), atto (10

^-18

• • ),

• • zepto (10

^-21

• • ), yocto (10

^-24

• • )

For more information see

Specialist Calculators;

Cleave Books or the

Centre for Innovation in Mathematics Teaching

CONVERSION FACTORS FOR ENERGY EQUIVALENTS – CALCULATOR – Physical Measurement Laboratory,
National Institute of Standards

Conversion Factors for Energy Equivalents Calculator includes:

• • “…Joule (J);

• • kilogram (Kg);

• • inverse meter (1/m);

• • hertz (Hz);

• • kelvin (K);

• • electron volt (eV);

• • atomic mass unit (u);

• • hartree (Eh)…”

For more information see

International System of Units (SI);

The NIST Reference on Constants, Units, & Uncertainty;

Physical Reference Data or the

Physical Measurement Laboratory

FUNDAMENTAL SI UNITS – Institut für Chemie und Biochemie – Bereich Chemie,
Freie Universität Berlin, Germany
In English & German/Deutsch.

Fundamental SI Units includes:

• • “…Quantity, Name, Symbol, Name, Symbol, SI Prefixes,

• • SI Derived Units…”

For more information see the

Institute of Chemistry (English Version) or the

Institut für Chemie und Biochemie – Bereich Chemie

UNIT CONVERSION CALCULATORS & APPLETS

• • • (Large Conversion Calculators – Over 300 Calculators)

UNIT CONVERTER CALCULATORS – I. Lewis,
IML Design,
IML Design Pty Ltd.
Hampton,
Victoria, Australia

• • • VERY VERY VERY…EXTENSIVE.

• • • Display Answere to 4 or 10 Decimal Places.

• • • Examples of Unit Conversion Calculators include
      • “…Acceleration Calculator; Angle Calculator;

• • • • Area & Second Moment Area Calculator;

• • • • Energy Calculator; Force Calculator;

• • • • Length Calculator; Light Calculator;

• • • • Mass and Moment of Inertia Calculator;

• • • • Moment of Force or Torque Calculator;

• • • • Power Calculator; Pressure & Stress Calculator;

• • • • Temperature Calculator; Time Calculator;

• • • • Velocity Calculator; Viscosity Calculator; etc…”

For more information see

IML Design

CONVERTUNIT/KONVERTERA – M. Bergsten, Stockholm, Sweden
VERY VERY EXTENSIVE.

Available in English & Swedish/Svenska.

Significant Figures to 7 places with option to use Scientific Notation.

Depending on Measuring Conversion, Unit Conversions include:

• • • • “…Metric; British; American; Chinese; Japanese; Nautical;

• • • • Avoirdupois; Ancient Greek; Biblical; Old Swedish; Troy;

• • • • Astronomical;, etc…”

Unit Conversion Calculators include:

• • • • “…Area; Data Storage; Distance/Length; Energy; Fuel Consumption;

• • • • Power; Pressure; Speed; Temperature; Time; Volume/Capacity;

• • • • Weight/Mass; etc…”

UNIT CONVERSION CALCULATORS (ENGLISH, METRIC, OLD ENGLISH & SPECIAL UNITS (JAPANESE, SPANISH, LATVIA, IRANIAN, OLD TESTAMENT ETC.) – R.E. Greaves, Araneid Creations, U.K.
VERY VERY VERY…EXTENSIVE.

Unit Conversion Calculators include:

• • • • Acceleration Calculator; Angle Calculator; Angular Accleration Calculator; Area Calculator;

• • • • Capacitance Calculator; Charge Calculator; Concentration Calculator; Current Calculator;

• • • • Density Calculator; Dynamic Viscosity Calculator; Energy Calculator; Force Calculator;

• • • • Illumination Calculator;

• • • • Length Calculator; Length (Foreign) Calculator; Linear Density Calculator;

• • • • Magnetic Flux Calculator; Magnetic Induction Calculator; Mass Calculator;

• • • • Mileage Calculator; Moment of Inertia Calculator;

• • • • Potential Calculator; Power Calculator; Pressure Calculator;

• • • • Solid Angle Calculator; Speed Calculator; Surface Tension Calculator;

• • • • Temperature Calculator; Thermal Conductivity Calculator; Time Calculator;

• • • • Torque Calculator; Volume Calculator;

• • • • Weight Calculator; Weight (Foreign) Calculator; etc.

• • • • Ancient Weight Conversions include
        • Arabic Weights; Greek Weights; Roman Weights;

• • • • • Old Testament Weights; Old Palestine Weights; etc.

Ancient Length Conversion include

• • • • • Arabic; Assyrian; Aztec; Babylon; Biblical; Chinese;

• • • • • Druid; Egyptian; Greek; Hashimi; Homeric; Old French;

• • • • • Olympic; Persian Royal; Roman; Sumerian; etc.

For more information see

The Foot Rule

CONVERSION OF UNITS/UMRECHNUNG VON EINHEITEN – Institut für Chemie und Biochemie – Bereich Chemie,
Freie Universität Berlin, Germany
VERY VERY EXTENSIVE.

Available in English & German/Deutsch.

Conversion of Units Calculator

• • • • “…You may write a numerical value and a permissible unit into the free-form

• • • • field. Alternatively, the unit may be selected from the selector box. The

• • • • numerical value may be omitted (default is 1). You may select the “wanted” unit

• • • • from the selector box. Alternatively, a permissible “wanted” unit (US name)

• • • • may be written into the free-form field (usually, no numerical value).

For more information see the

Institute of Chemistry (English Version) or the

Institut für Chemie und Biochemie – Bereich Chemie

CONVERT-ME – S. Gershtein
VERY VERY EXTENSIVE.

Available in English & Russian.

Depending on Measuring Conversion, Unit Conversions include:

• • • • “…Metric; British & American; Japanese;

• • • • Chinese Imperial; Thai; Nautical;

• • • • Typographical (British & U.S.: ATA System);

• • • • Typographical (Europe: Didot System);

• • • • Astronomical; Old French; Old Russian;

• • • • Ancient Roman; Biblical; Ancient Greek; Artillery; etc…”

Unit Conversion Calculators include:

• • • • “…Weight & Mass Calculator; Distance & Length Calculator;

• • • • Capacity & Volume Calculator; Area Calculator; Speed Calculator;

• • • • Temperature Calculator; Pressure Calculator;

• • • • Energy & Work Calculator; Power Calculator; Torque Calculator;

• • • • Circular Measure Calculator; etc…”

CONVERT IT – ConvertIt.com, Inc.
VERY VERY VERY…EXTENSIVE.

Unit Conversion Calculators include:

• • • • “…Area Calculator; Acceleration Calculator; Angular Acceleration Calculator,

• • • • Momentum Calculator; Power Calculator; Velocity Calculator;

• • • • Dose Equivalent Calculator; Dynamic Viscosity Calculator;

• • • • Electric Charge Calculator; Electric Charge Density Calculator; Electric Current Calculator;

• • • • Electric Dipole Moment Calculator; Electric Field Strength Calculator;

• • • • Electric Flux Density Calculator; Electric Potential Calculator;

• • • • Electric Resistance Calculator; Force Calculator; Frequency Calculator;

• • • • Heat Capacity Calculator; Heat Flux Density Calculator;

• • • • Kinematic Viscosity Calculator; Length Calculator; etc…”

CRUDE OIL, CONDENSATE, LPG, LNG, ETHANE, RATES PER DAY/YEAR, CHOKE SIZES ETC. – SANTOS CONVERSION CALCULATORS – Santos Limited,
Adelaide, Australia
VERY VERY VERY…EXTENSIVE.

Examples of Petroleum Calculators include:

• • • • Crude Oil Calculator INPUT Values include
        • “…Barrels;

• • • • • 1000 Barrels of Oil Equivalent (KBOE);

• • • • • Tonnes or Kilolitres…”

Condensate Calculator INPUT Values include

• • • • • “…Barrels;

• • • • • 1000 Barrels of Oil Equivalent (KBOE);

• • • • • Tonnes or Kilolitres…”

Liquefied Petroleum Gas (LPG) Calculator INPUT Values include

• • • • • “…Barrels;

• • • • • 1000 Barrels of Oil Equivalent (KBOE);

• • • • • Tonnes or Kilolitres…”

Liquefied Natural Gas (LNG) Calculator INPUT Values include

• • • • • “…1000 Barrels of Oil Equivalent (KBOE);

• • • • • Tonnes;

• • • • • Terajoule (TJ) or Petajoule (PJ)…”

Ethane Calculator INPUT Values include

• • • • • “…Million Dubic Metres (MMCM);

• • • • • Million Cubic Feet (MMCF);

• • • • • KTonnes;

• • • • • Terajoule (TJ)…”

Volume Calculator INPUT Values include

• • • • • “…Cubic Metres;

• • • • • Cubic Feet;

• • • • • Barrels;

• • • • • Litres;

• • • • • Kilolitres;

• • • • • US Gallons;

• • • • • Imperial Gallons…”

Choke Sizes Calculator INPUT Values include

• • • • • “…Inches;

• • • • • Millimetres;

• • • • • 64ths…”

For more information see

Santos

UNIT CONVERSIONS CALCULATORS – The Converter Site, Alastair Hazell
VERY VERY EXTENSIVE.

Unit Conversions Calculators

• • • • “…Display answers: 1 to 7 decimal places…”

Examples of Unit Conversion Calculators include:

• • • • Acceleration Converter Calculator
        • Centimeters per Second, Decimeters per Second, Dekameters per Second, etc…”

Area Converter Calculator

• • • • • “…Acres, Ares, Barns, Hectares, Square Angstroms, Square Feet,

• • • • • Square Hectometers, Square Inches, Square Miles, Square Millimeters, etc…”

Energy Converter Calculator

• • • • • “…British Thermal Units, Calories, Electron Volt, Ergs, Foot Pounds,…”

Fuel Consumption Converter Calculator; Length and Distance Converter Calculator;

Liquid Volume Converter Calculator; Mass and Weight Converter Calculator;

Power Converter Calculator; Temperature Converter Calculator;

Time Converter Calculator; Velocity Converter Calculator; etc…”

EINHEITEN-KONVERTER (UNIT CONVERSIONS CALCULATORS) – Chemie.DE Information
Service GmbH, a Life Science Network Division
VERY VERY VERY…EXTENSIVE.

In German/Deutsch.

Examples of Unit Conversion Calculators include:

• • • • “…Acceleration Calculator; Angle Calculator; Area Calculator;

• • • • Area Dipole Moment Calculator;

• • • • Capacity Calculator; Charge Calculator; Compressibility Calculator;

• • • • Conductivity Calculator; Current Calculator;

• • • • Density Calculator, Dipole Moment Calculator, Dose Equivalent Calculator;

• • • • Dose Load Calculator;

• • • • Energy Calculator; Effectivity Calculator; Entropy Calculator; Exposure Calculator;

• • • • Force Calculator; Frequency Calculator;

• • • • Illuminance Calculator; Inductance Calculator;

• • • • Kinematic Viscosity Calculator;

• • • • Length Calculator; Luminance Calculator; Luminous Energy Calculator;

• • • • Luminous Flux Calculator; Luminous Intensity Calculator;

• • • • Mass Calculator; Magnetic Flux Calculator; Magnetic Flux Density Calculator;

• • • • Magnetic Reluctance Calculator; Magnetisation Calculator;

• • • • Permitivity Calculator; Power Calculator; Pressure Calculator;

• • • • Radian Calculator; Radioactivity Calculator; Range Calculator;

• • • • Reciprocal Focal Length Calculator; Resistance Calculator;

• • • • Solid Aangle Calculator;

• • • • Temperature Calculator; Thermal Inductance Calculator; Thermal Insulance Calculator;

• • • • Thermal Resistance Calculator; Time Calculator; Transfer Rate Calculator;

• • • • Velocity Calculator; Viscosity Calculator; Voltage Calculator; Volume Calculator; etc…”

For more information see

Chemie DE

ENERGY CALCULATIONS: CRUDE OIL, REFINED PRODUCTS (GASOLINE, DISTILLATES,
RESIDUAL FUEL, ETC.), COAL, NATURAL GAS, METALS, ETC. – CME Group
VERY VERY VERY…EXTENSIVE.

Energy Calculators

• • • • Crude Oil Calculators include
        • Crude Oil Volume Calculator

• • • • • Crude Oil Futures Calculator

Refined Oil Products Calculators include

• • • • • Unleaded Gasoline Calculator;

• • • • • Unleaded Gasoline Futures Calculator;

• • • • • Kerosene Calculator;

• • • • • Distillates: Heating Oil & Diesel Calculator;

• • • • • Heating Oil Futures Calculator;

• • • • • Residual Fuel Oil Calculator;

• • • • • Propane Calculator…”

Natural Gas Calculators include

• • • • • “…Natural Gas Calculator;

• • • • • Natural Gas Futures Calculator…”

Coal Calculator Calculator;

Crack Spreads Calculator;

Sparks Spreads Calculator; etc.

For more information see the

CME Group

ENGINEERING UNIT CONVERSION CALCULATORS – eFunda, Inc.
VERY VERY VERY…EXTENSIVE.

ngineering Unit Conversion Calculators

• • • • “…Featuring more than 800 units in our database (and growing), we give the

• • • • unit definition and SI-dimensions in addition to converting from one unit to

• • • • other units in the same family…”

Engineering Unit Conversion Calculators include:

• • • • “…Temperature Calculator; Viscosity Calculator;

• • • • Electric Calculator; Luminous Calculator;

• • • • Wire Gages Calculator; Sheet Metal Gages Calculator;

• • • • Acceleration Calculator; Acoustic Impedance Calculator;

• • • • Angle Calculator;

• • • • Angular Velocity Calculator; Area Moment of Inertia Calculator;

• • • • Electromagnetic Radiation Flux density Calculator;

• • • • Entropy Calculator;

• • • • Exposure Calculator; Fracture Toughness Calculator;

• • • • Illuminance Calculator;

• • • • Logarithm of a Ratio Calculator; Luminous Intensity Calculator;

• • • • Magnetic Flux Calculator; Magnetomotive Rorce Calculator;

• • • • Molar Electric Charge Calculator; Permeability Coefficient Calculator;

• • • • Radiance Calculator; Refractive Power Calculator;

• • • • Surface Density Calculator; etc…”

For more information see

Calculators or

Engineering Fundamentals

ENGINEERING CONVERSION CALCULATORS – EngNet Ltd
VERY VERY EXTENSIVE.

Engineering Unit Conversion Calculators include:

• • • • “…Acceleration Calculator; Angular Acceleration Calculator;

• • • • Area Calculator; Dynamic Viscosity Calculator; Force Calculator;

• • • • Kinematic Viscosity Calculator; Linear Velocity Calculator;

• • • • Angular Velocity Calculator; Density Calculator; Mass Flow Calculator; etc…”

For more information see

Tips & Tools or

EngNet – Engineering Directory

MEGA CONVERTER CALCULATOR (JAVA APPLETS) – Ben-Cam InterMedia
VERY VERY VERY…EXTENSIVE.

Unit Conversion Calculators include:

• • • • Angle Calculator;

• • • • Area Calculator – Foreign Area Calculations include:
        • Acre, Hectare, Arpent, Scotish Acre, Yoke,

• • • • • Barony, Sahme, etc.

Astro Distance Calculator; Force Calculator; Fraction to Decimal Calculator;

Length Calculator; Length Calculator (Foreign);

Length (Ancient); Shot Count Calculator; Weight Calculator;

Weight Calculator (Ancient); Weight Calculator (Foreign);

Weight in Space Calculator;

Wine & Spirts Calculations include:

• • • • • Litres, Shot, Pony, Double, Triple, Magnum, Jeroboam, Gallon,

• • • • • Keg, Wine Barrel, Beer Barrel, etc.); etc.

METALCALC – The Ganoksin Project
VERY VERY EXTENSIVE.

Unit Conversion Calculators include:

• • • • Metric
        • Kiloton, Tonne, Hundredweight, Kilogram, Newton,

• • • • • Gram, Carat, Milligram, etc.

Avoirdupois (U.S.)

• • • • • Long Ton, Short Ton, Long Hundredweight, Short Hundredweight,

• • • • • Stone, Pound, Ounce, Dram, Grain;

Troy

• • • • • Pound, Ounce, Pennyweight, Carat, Dyne, Grain;

Apothecaries

• • • • • Pound, Ounce, Dram, Scruple, Grain;

U.S. Liquid Measure

• • • • • Acre foot, Cubic yard (cu yd), Barrel, Cubic foot (cu ft),

• • • • • Gallon (gal), Quart (qt), Pint (pt), Gill (gi), Fluid Ounce (fl oz),

• • • • • Cubic inch (cu in) Fluid dram (fl dr) Minim (min);

U.S. Dry Measure

• • • • • Cubic yard (cu yd), Barrel, Bushel (bu), Cubic foot (cu ft),

• • • • • Peck (pk), Gallon (gal), Quart (qt), Pint (pt), Gill (gi),

• • • • • Dry Ounce (dr oz), Cubic inch (cu in), Dry dram (dr dr),

• • • • • Minim (min); etc.

For more information see

The Ganoksin Project

ONLINECONVERSION – onlineconversion.com
VERY VERY VERY…EXTENSIVE.

Unit Conversion Calculators include:

• • • • “…Acceleration Calculator; Angles Calculator; Area Square Calculator;

• • • • Astronomical Calculator; Date/Time Calculator; Energy Calculator;

• • • • Flow Rate Calculator; Force Calculator; Length/Distance Calculator;

• • • • Light Calculator; Numbers Calculator; etc…”

THE THERMAL WIZARD – MAYA Heat Transfer Technologies Limited,
Montreal, Québec, Canada
Multimedia Thermal Database & Thermal Calculators (Text & Images).
VERY VERY VERY…EXTENSIVE.

Thermal Wizard

• • • • “…is developed and maintained by MAYA Heat Transfer Technologies in Montreal,

• • • • Quebec, Canada. We hope you find it is a useful tool to help you understand

• • • • common heat transfer problems and thermal phenomena. Although we try and test

• • • • the tools to ensure quality, this tool is provided for your personal use…”

Thermal Wizard includes:

• • • • Material Properties Database “…Metals; Non-metals;

• • • • Air; Gases; Water; Liquids; etc…”

Conduction Calculators examples include

• • • • “…Steady-state Conduction on Multilayer Isothermal Wall Calculator;

• • • • Conduction Across Multilayered Isothermal Cylinder Calculator;

• • • • Thermal Interface (Contact) Resistance and Temperature Difference Calculator;

• • • • Rectangular Thin Plate Embedded in Semi-Infinite Medium Calculator; etc…”

Convection Calculators examples include:

• • • • “…Forced Convection on Isothermal Flat Plate in Free Stream Calculator;

• • • • Forced Convection in the Fully Developed Region of a Duct Calculator;

• • • • Forced Convection Across Isothermal Square Rod Calculator;

• • • • Natural Convection in a Vertical Parallel Plate Channel Calculator;

• • • • Natural Convection between Horizontal Concentric Cylinders Calculator; etc…”

Radiation Calculators examples include:

• • • • “…Radiation Between Parallel Rectangular Surfaces Calculator;

• • • • Radiation between Parallel Disk Surfaces of Unequal Radius Calculator; etc…”

Head Loss Coefficients Calculators examples include:

• • • • “…Head Loss at a Duct Entrance Calculator;

• • • • Head Loss Across a Thin Perforated Plate Calculator;

• • • • Head Loss Across Louvers Calculator; etc…”

For more information see

MAYA Heat Transfer Technologies Limited

UNIT CONVERSION CALCULATORS & APPLETS

• • • (Specialized & Medium Size Conversion Calculators)

CONVERSION CALCULATOR – FUTEK Advanced Sensor Technology, Inc.

• • • VERY EXTENSIVE.

• • • Unit Conversion Calculators include:
      • “…Angle Calculator; Area Calculator; Density Calculator;

• • • • Energy Calculator; Flow (mass) Calculator; Flow (vol) Calculator;

• • • • Length Calculator; Load Calculator; Magnetics Calculator;

• • • • Power Calculator; Pressure Calculator; Speed Calculator;

• • • • Temperature Calculator; Time Calculator; Torque Calculator; & Volume Calculator…”

For more information see

FUTEK Online Calculators or

FUTEK Advanced Sensor Technology, Inc.

CONVERSION OF UNITS – UMRECHNUNG VON EINHEITEN – F. Richter,
Technical University of Chemnitz-Zwickau, Bundesrepublik Deutschland (Germany)
In English & German/Deutsch.
VERY EXTENSIVE.

Unit Conversion Calculators include:

• • • • “…Temperature Calculator; Weight Calculator; Length Calculator;

• • • • Area Calculator; Volumes Calculator; Energy & Work Calculator;

• • • • Power Calculator; Pressure Calculator; Speed Calculator;

• • • • Fuel Consumption Calculator; Density Calculator; etc…”

For more information see

English <> German Dictionary

DIGITAL DUTCH UNIT CONVERTER – CALCULATOR – DigitalDutch.com
VERY EXTENSIVE.

Unit Conversion Calculators include:

• • • • “…Area Calculator; Bits & Bytes Calculator; Density Calculator;

• • • • Energy Calculator; Force Calculator; Speed Calculator; etc…”

For more information see

DigitalDutch.com

FRANS’ CONVERSION CALCULATORS (METRIC, IMPERIAL, U.S.) – Frans
Simon van Leeuwen
VERY EXTENSIVE.

Unit Conversion Calculators include:

• • • • “…Area Calculator; Currency Calculator; Density Calculator;

• • • • Fuel Calculator; Length Calculator; Pressure Calculator;

• • • • Speed Calculator; Temperature Calculator; Volume Calculator; Weight Calculator…”

For more information see

Frans Simon van Leeuwen’s Home Page

PRESSURE UNITS CONVERTER – CALCULATOR – Omega Engineering Inc.
For more information see

Technical Reference or

Omega Engineering Inc.

SPECIALIST CALCULATORS – F. Tapson &
Cleave Books, Centre for Innovation in Mathematics Teaching,
University of Exeter, U.K.
VERY VERY EXTENSIVE.

For more information see

Specialist Calculators;

Cleave Books or the

Centre for Innovation in Mathematics Teaching

UNITS OF MEASURE CALCULATORS – AUTO/TRUCK ETC. – DieselNet, ECOpoint Inc.

Unit Conversion Calculators include:

• • • • Units of Measure
        • “…Length; Area; Volume; Mass; Density; Force; Torque;

• • • • • Pressure; Energy; Power; Velocity; Flow Rate; Temperature;

• • • • • Fuel Consumption; etc…”

Smoke Density;

Sulfate Particulates…”

For more information see

Calculators or

Dieselnet

WEIGHT CALCULATOR – scalesgalore.com

Weight Calculator include:

• • • • “…Grams (g); Milligrams (mg); Kilograms (kg); Ounces (oz); Pounds (lb);

• • • • Troy Ounces (ozt); Pennyweight (dwt); Carats (ct); Ticals; Mommes;

• • • • Grains; Newtons; Taels (Singapore); Taels (Rep. of China); Taels (Hong Kong)…”

For more information see

Scalesgalore

Paper Tape Scientific Calculators

PAPER TAPE SCIENTIFIC CALCULATORS & APPLETS

• • • PAPER TAPE CALCULATORS & APPLETS

• • • PAPER ROOL CALCULATORS & APPLETS

PAPER TAPE CALCULATOR – Giorgio Arcidiacono
VERY VERY EXTENSIVE.
For more information see

Sitemap or

Alculá

Scientific, Financial, Astro-Physical, Chemical, etc. Calculators, Wolfram’s Math Widgets

SCIENTIFIC CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS

• FINANCIAL CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS

• MATH WIDGETS, ASTR0-PHYSICAL CALCULATORS, ETC.

FOR GRAPHER/PLOTTER CALCULATORS SEE THE

MATHEMATICS CENTER: GRAPHING & PLOTTING CALCULATORS

CALCINATOR: FREE MOBILE MATH APP – George Paulos
VERY VERY VERY…EXTENSIVE – VERY FAST – VERY CLEVER

Calcinator

• • “…is a powerful Mobile Math Suite which provides users with a

• • convenient and potent set of handy mathematics tools that can be

• • used on a wide variety of desktop and mobile devices…”

Examples of Calculators include

• • Scientific Calculator

• • Financial Calculator
    • “…replaces most of the functions of a handheld financial calculator.

• • • It is useful for many loan, bond, cash flow, implied rate, and

• • • other common financial calculations…”

f Solver Calculator Categories include

• • • “…2D Geometry with Formulas;

• • • 3D Geometry with Formulas;

• • • Analytic Geometry with Formulas;

• • • Algebraic Formulas;

• • • Classical Physics with Formulas;

• • • Electronics with Formulas;

• • • Statistics with Formulas;

• • • Thermodynamics with Formulas; etc…”

Unit Conversion Calculator includes

• • • “…Length;

• • • Area;

• • • Volume;

• • • Mass;

• • • Temperature;

• • • Energy;

• • • Force;

• • • Times; etc…”

Hex Calculator

• • • “…a tool for base conversion and bitwise operations

• • • on Hex, Decimal, Octal, and Binary values…”

MATH WIDGETS – WolframAlpha,
Wolfram
VERY VERY VERY…EXTENSIVE

Examples from over “8,000” Math Widgets – Calculators

• • “…Laplace Transform Calculator;

• • Laplace Inverse Calculator;

• • Simple Derivative Calculator;

• • Quadratic Equation Solver;

• • ODE Solver;

• • Indefinite integrals Calculator;

• • Definite integrals Calculator;

• • Definite Integral Calculator;

• • Algebraic Problem Solver;

• • General Differential Equation Solver;

• • Simultaneous Equation Solver; etc…”

For more information see

Gallery;

Widgets or

WolframAlpha

eCALC: SCIENTIFIC CALCULATOR – Aspen Labs, LLC
VERY VERY VERY…EXTENSIVE – VERY FAST – VERY CLEVER.

Examples of “eCalc: Scientific Calculator” Features include

• • “…Complex number support;

• • Unit Conversion Utility;

• • Equation Solver (with support for complex numbers);

• • Engineering Constants List;

• • Base Conversion Utility;

• • Decimal to Fraction Utility;

• • Supports both Algebraic and Infix Modes; etc…”

For more information see

EEWeb

A SCIENTIFIC CALCULATOR – V.M. Ponce,
Department of Civil, Construction and Environmental Engineering,
College of Engineering,
San Diego State University
VERY VERY VERY…EXTENSIVE, VERY UNIQUE & VERY FAST.
For more information see

Victor Miguel Ponce’s Home Page;

Faculty Home Page;

Department of Civil, Construction and Environmental Engineering or the

College of Engineering

ALCULÁ’S SCIENTIFIC CALCULATOR – CALCOLATRICE SCIENTIFICA – Giorgio Arcidiacono
VERY VERY VERY…EXTENSIVE.

Available in English/Inglese & Italian/Italiano

Scientific Calculator

• • “…has an expression history so you can see your previous steps. You can

• • also update a previous expression and all following expressions are

• • updated automatically;

• • Supports complex numbers operations. Complex numbers can be

• • input in Cartesian, Polar, or Exponential form. You can also use

• • the calculator to convert to and from cartesian, polar or exponential…”

For more information see

Sitemap or

Alculá

ASTR0-PHYSICAL CALCULATOR – C. Dolan,
Software Engineer,
Sony Creative Software;
Hosted by the
Department of Astronomy,
University of Wisconsin,
Madison, Wisconsin
VERY VERY EXTENSIVE.

Astro-Physical Calculator includes:

• • Scientific, Technical, Programming and Logic functions

• • Physical Constants
    • “…Velocity of light; Planck constant; Gravitational constant;

• • • Electron charge; Mass of electron; Mass of proton;

• • • Mass of neutron; Mass of hydrogen; Avagadro’s number;

• • • Boltzmann constant; Rydberg constant; etc…”

Astronomical Constants

• • • “…Astronomical unit; Parsec; Light year; Solar mass; etc…”

Planetary Data

• • • “…Mass; Radius; Period; Eccentricity; etc…”

For more information see

Java Applets & Javascript;

Chris Dolan’s Home Page at the Department of Astronomy;

Department of Astronomy or

Chris Dolan’s Home Page

BIG NUMBER SCIENTIFIC CALCULATOR – D.A. Alpern,
Buenos Aires, Argentina
VERY VERY VERY…EXTENSIVE.

Big Number Scientific Calculator is a

• • “…high-precision calculator features

• • complex numbers, precision up to 1 million digits

• • and exponents up to 1 billion…”

For more information see

Number Theory;

Calculators or

Darío A. Alpern’s Home Page

CHEMICAL, UNIT CONVERSION & SCIENTIFIC CALCULATOR – First Year Chemistry,
School of Chemistry,
University of Sydney, Sydney, Australia
VERY VERY VERY…EXTENSIVE.

Chemical, Unit Conversion & Scientific Calculator includes:

• • “…Scientific Calculator with up to 15 Decimal Places;

• • Enter a Chemical, Physical or Mathematical Constant into a Calculation;

• • Convert between common units in Chemistry & Science;

• • Enter a Chemical Formula using standard notation to calculate mass; etc.

For more information see

Chemical Calculators;

First Year Chemistry or the

School of Chemistry

CHEMISTS SCIENTIFIC CALCULATOR – periodni.com,
Eni Generalic
Multimedia Scientific Calculator for Chemists (Text & Images).
VERY VERY EXTENSIVE.

Available in Croatian, English, French, German, Italian, Spainsh.

Chemists Scientific Calculator

• • “…This calculator can be used as common scientific calculator

• • (sin, cos, log, power, root, memory), but it also includes a molecular weight

• • calculator and the tables with various physical and chemical constants.

• • The calculator contains a list with task history, storing all the

• • recent inputs and results. Scientific calculator displays the numbers

• • rounded to a user-specified number of decimal places…”

For more information see

Periodic Tables of the Elements, Calculators, and Printable Materials

COMPLEX NUMBER CALCULATOR – D.A. Alpern, Buenos Aires, Argentina
VERY VERY VERY…EXTENSIVE.

Complex Number Calculator:

• • “…Reverse polish notation complex number calculator capable of performing all

• • basic operations, powers, roots, logarithms, trigonometric functions,

• • hyperbolic functions, gamma and polygamma functions…”

For more information see

Number Theory;

Calculators or

Darío A. Alpern’s Home Page

DERL’S SCIENTIFIC CALCULATOR – Director: Sape A. Miedema,
Dredging Engineering Research Laboratory (DERL),
Dredging Engineering,
Offshore and Dredging Engineering,
Department of Maritime and Transport Technology,
Faculty Mechanical, Maritime and Materials Engineering
Delft University of Technology,
Delft,
The Netherlands
VERY VERY VERY…EXTENSIVE.

DERL’S Scientific Calculator

• • • • “…designed to accept data and operating instructions in

• • • • reverse polish notation, avoiding the use of parenthesis.

• • • • It implements a simple 9-levels stack of floating-point

• • • • numbers, with various management commands, arithmetic

• • • • operations and functions, and predefined physical constants…”

For more information see

Dredging Engineering Research Laboratory;

S.A. Miedema’s Faculty Home Page;

Dredging Engineering;

Department of Maritime and Transport Technology or the

Faculty Mechanical, Maritime and Materials Engineering

GEOMETRIC CALCULATOR – Roger E Critchlow Jr.,
The Entropy Liberation Front
VERY VERY EXTENSIVE.

Geometric Calculator is

• • • • “…an ordinary desk calculator that uses the Clifford

• • • • Numbers over a three dimensional Euclidean Space. This

• • • • means that in addition to doing the normal computations

• • • • on (computer implemented) real numbers that you are

• • • • used to finding on a desk calculator, this calculator

• • • • also computes on vectors in two and three space, on

• • • • the bivectors over those vectors, on the trivector

• • • • over three space, on complex numbers,

• • • • and on quaternions…”

For more information see

The Entropy Liberation Front

HP-25 CALCULATOR SIMULATION – ENGINEERING & SCIENTIFIC (JAVA APPLET) – Applet written by L. Leinweber and
hosted by Author: D.G. Hicks, The Museum of HP Calculators
VERY EXTENSIVE.

HP-25 Calculator

• • • • “…These programs are not Hewlett-Packard products and are supplied without

• • • • representation or warranty of any kind…”

For more information see

The Museum of HP Calculators

JAVACALC – K. Kikuchi, Japan & Hosted by Mathe Online
VERY EXTENSIVE.

OCTONION CALCULATOR – G. Dixon, Lincoln, MA
VERY VERY EXTENSIVE.

Octonion Calculator is

• • • • “…a conventional scientific calculator with a twist:

• • • • pressing a function button produces a graph of the

• • • • function (if its value is defined for the given input) and

• • • • shows the (x, y) point on the graph corresponding to

• • • • input and output…”

For more information see

Mathematical Ideas in Science or

7 Stones

PHYSICS POCKET COMPUTER (JAVASCRIPT): BASIC; SCIENTIFIC; PHYSICS – Jean-Pol Vigneron,
Départment of Physique,
Université de Namur,
Belgium
VERY VERY VERY…EXTENSIVE.
For more information see

Départmnet of Physique

REVERSE POLISH NOTATION COMPLEX NUMBER CALCULATOR (JAVA APPLET) – D.A. Alpern,
Buenos Aires, Argentina
VERY VERY VERY…EXTENSIVE.

Reverse Polish Notation Complex Number Calculator is

• • • • “…capable of performing all

• • • • basic operations, powers, roots, logarithms, trigonometric functions,

• • • • hyperbolic functions, gamma and polygamma functions…”

For more information see

Calculators or

Darío A. Alpern’s Home Page

RPM – POSTFIX CALCULATOR – D. Stevens,
School of Mathematics,
University of East Anglia, U.K.
VERY EXTENSIVE.

Postfix Calculator

• • • • “…The calculator works a little differently from other calculators you may

• • • • have used. Suppose you want to add two numbers. Enter the first number. Press

• • • • “Enter.” This commits the first number into the calculator’s memory.

• • • • Then enter the second number. After that, enter the type of

• • • • operation (such as “+”) that you wish to perform…”

For more information see

Dave Stevens Home Page

SCIENTIFIC AND STATISTICAL CALCULATOR – G. Dixon, Lincoln, MA
VERY VERY EXTENSIVE.
For more information see

Mathematical Ideas in Science or

7 Stones

SCIENTIFIC CALCULATOR FOR CHEMISTS WITH NOTEBOOK – periodni.com,
Eni Generalic
VERY VERY EXTENSIVE.
For more information see

Periodic Tables of the Elements, Calculators, and Printable Materials

SELECTABLE PRECISION CALCULATOR (JAVA APPLET) – Developers: M.T. Heath,
E. VanderZee, J. Schoen, J. Naisbitt, S. Sakshuwong, J. Zou, and N. Exner;
Sponsored by: Computational Science and Engineering;
M.T. Heath (Fulton Watson Copp Chair Emeritus),
Department of Computer Science,
College of Engineering
University of Illinois,
Urbana-Champaign,
Illinois

Selectable Precision Calculator

• • • • “…The user selects any desired precision

• • • • from 1 to 25 decimal digits. The calculator then

• • • • performs the usual arithmetic operations

• • • • in the chosen (fixed) precision…”

For more information see

Floating-Point Arithmetic;

Interactive Educational Modules in Computational Science;

Teaching;

Michael T. Heath’s Home Page or the

Department of Computer Science