- the ultimate desktop calculator
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). Features include a large library of customizable functions, unit calculations and conversion, physical constants, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, plotting, and a user-friendly interface (GTK, Qt, and CLI).

Qalculate! is free software, licensed under the GNU Public License v2 (or later).

Download version 5.1.1

Latest News
Qalculate! version 5.1.1 released
This version fixes a^(f(x)) = (a^b)^(g(x)), where b equals -1, 2/3, 2 or 3, and f(x) does not equals g(x). Only libqalculate has been updated.
Qalculate! version 5.1 released
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