Basic Calculator

Fast and easy calculations — directly in your browser.

Calculator
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Calculations stay in your browser Ready
OneToolBox

Basic Calculator Features

Everything you need for quick everyday calculations.

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Fast & Simple

Calculate instantly in your browser.

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Scientific Functions

Trigonometry, logarithms, powers and roots.

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Keyboard Support

Type expressions and press Enter.

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Browser Based

Calculations run locally in your browser.

FAQ

Frequently Asked Questions

Quick answers about the calculator.

Is the Basic Calculator free?

Yes. It is designed to work directly in your browser.

Does it need a file upload?

No. Enter numbers or an expression directly into the calculator.

Does it support scientific calculations?

Yes. It includes sin, cos, tan, log, ln, square root, powers, π and e.

Can I use my keyboard?

Yes. Enter calculates, Backspace deletes and Esc clears.