Comparison of online calculators

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General-purpose calculators

These calculators are online substitutes for the standard calculator. They serve a general mathematical purpose.

Price Simple operators[note 1] Roots[note 2] Logarithms[note 3] Trigonometric functions[note 4] Scientific notation Expressions Units Calculation history (tape) Graphing Website
Calc5 [1] Free Yes Yes Partial Yes No Yes No Yes Yes calc5.com
Calcoolate Free Yes Yes Yes Yes Yes Yes Yes Yes No calcoolate.com
Calculator Tab Free Yes Yes Yes Yes Yes No No No No calculator-tab.com
eCalc Non-freeUS$15 Yes Yes Yes Yes Yes Yes Yes Yes No ecalc.com
Google [2] Free Yes Yes Yes Yes Yes Yes Yes No No google.com
instacalc [3] Free Yes Yes Yes Yes Yes Yes Yes Yes No instacalc.com
Metacalc Free Yes Partial No No No No No No No metacalc.com
Virtual Calc98 Free Yes Partial Yes Yes Yes No No No No calculator.org/jcalc98.aspx
Visual Calculator [4] Free Yes Yes Yes Yes Yes Yes No Yes No visualcalculator.com
web2.0calc [5] Free Yes Yes Yes Yes No Yes No Yes Yes web2.0calc.com
WolframAlpha [6] Free Yes Yes Yes Yes Yes Yes Yes No Yes wolframalpha.com

Special-purpose calculators

Graphing calculators

Graphing calculators are used to visually depict the relationship between variables in either two or three dimensions.

Price Expressions Equations Polar coordinates Derivatives Parametric curves Website
Calc5 [7] Free Yes No No Yes No calc5.com
e-Tutor Graphing Calculator [8] Free Yes No No No No e-tutor.com/et2/graphing
GCalc Free Yes No No No No gcalc.net
web2.0calc [9] Free Yes No No Yes No web2.0calc.com
WolframAlpha [10] Free Yes Yes Yes Yes Yes wolframalpha.com

Advanced scientific and engineering calculators

These calculators are specifically suited for calculations in a field of science or applied science. They fill a specific gap left by more general calculators, but are often not suitable for general use.

Price Primary field or use Website
Astro-Physical Calculator Free Astrophysics astro.wisc.edu/~dolan/constants/calc.html
Calculate Logarithm Free Logarithms rechneronline.de/logarithm
Calculator Edge Free Engineering calculatoredge.com
DiGiTconvert Free Base conversion digitconvert.com

Practical calculators and collections

These calculators have both a narrow purpose and a practical application, such as an amortization calculator. Several websites have extensive collections of narrow use, but practical calculators such as this.

Price Purpose Website
Bankrate Calculators Free Finance bankrate.com/calculators
Calculator.com Free Various calculator.com
Calculator.net Free Various calculator.net
Martindale's Calculators On-Line Center Free Various martindalecenter.com/Calculators.html
Online Conversion Free Unit conversion onlineconversion.com

See also

Notes

  1. Supports addition, subtraction, multiplication, division, and exponentiation.
  2. Supports either a function for performing arbitrary roots or exponentiation to arbitrary fractional powers. Support for only square or cube roots constitutes partial support.
  3. Supports both the natural logarithm and base-10 logarithm. Support for only one of these constitutes partial support. Support for logarithms to an arbitrary base is rarely found in a general-purpose calculator and is therefore not a requirement.
  4. Supports at a minimum the sine, cosine, and tangent functions in either radians or degrees.

References

Personal tools

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