Online Calculator

Type a math expression and get the result instantly. Supports arithmetic, parentheses, powers, modulo and functions like sin/cos/tan/√/log/ln, with switchable degrees/radians.

Free to useOpen and use right awayUtility Tools
Supports + − × ÷ ^ % and parentheses, plus sin cos tan sqrt log ln and constants π e

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About this tool

Online Calculator is a free scientific calculator that runs in any browser. It handles arithmetic with parentheses and powers, plus trigonometric functions, logarithms and square roots, and accepts full keyboard input so long expressions stay quick to enter. No sign-up and nothing to install.

Frequently asked questions

Which functions does it support?

Arithmetic with parentheses and powers, plus sin, cos, tan, log, ln and square roots.

Can I type with the keyboard?

Yes, the calculator accepts full keyboard input for fast entry.

Is this calculator free?

Yes, completely free with no sign-up.

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