CALCULATORS / FREE ONLINE TOOL
Arithmetic calculator
Calculate expressions with parentheses and operator precedence.
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How to use arithmetic calculator
Enter an expression using +, -, *, /, %, and parentheses.
Things worth knowing
The % operator means remainder, not percentage. Exponents, variables, and implicit multiplication are not supported. Floating-point results are rounded to 12 significant digits.
Is my input saved or uploaded?
Your input is processed locally and is not saved by this site. Reloading or leaving the page clears your work. Copy or download anything you want to keep. Only saved and recent tool IDs are stored on this device.