The best alternative to Google Calculator is SpeedCrunch, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Google Calculator and many of them are so hopefully you can find a suitable replacement. Other interesting alternatives to Google Calculator are Qalculate!, Calc You, fxSolver and GeoGebra Scientific Calculator.
SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and many features, such as variables, syntax highlighting, functions, persistent input history & more.
Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).
Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.
Free online scientific calculator from GeoGebra: perform calculations with fractions, statistics and exponential functions, logarithms, trigonometry and much more!
High precision scientific calculator with full support for physical units (web and terminal versions).
Scientific calculator with arbitrary precision and portrait and landscape mode. Fraction and periodic numbers support. Looks like a real calculator! The calculator has up to 100 digits of significand and 9 digits of exponent.
Kalk is a convergent calculator application built with the Kirigami framework. Although it is mainly targeted for mobile Linux platforms, it can also be used on the desktop.
MATH 42 helps over 2.200.000 middle-school, high-school and college students, to solve their math problems and get better grades at the fraction of the cost of a private tutor. MATH 42 helps with (1) intelligent approaches to the solution, (2) step-by-step solutions of their...
NumWorks designed an intuitive and evolutive graphing calculator to make learning maths easier.
HEXelon MAX is a science calculator. It solves math expressions like: Sin(Pi)-Root(-8;3)+3. Exchange rates table and currency converter are update from Internet by one click. Units converter makes easier to convert various units,14 categories of units: length, temperature...
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SpeedCrunch proves that the keyboard is better for using a calculator then the mouse. Also tons of functions are built into SpeedCrunch.