How it works
The calculator keeps the expression local and evaluates only basic arithmetic characters.
Use mouse, touch, or keyboard input.
A clean browser calculator.
Run basic arithmetic with keyboard support, decimals, percent, clear, and backspace.
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History
No calculations yet.
Practical examples
- Run quick arithmetic without opening a spreadsheet.
- Use keyboard input for repeated calculations.
- Apply percent calculations inside a simple expression.
How to read the result
- The display shows the current expression until you press equals.
- Recent completed calculations are kept in a copyable history list.
- Escape clears the expression.
Limits and privacy notes
- Only basic arithmetic characters are evaluated.
- This is not a scientific calculator.
- Expressions are evaluated locally in the browser.
Fast input
- Enter evaluates the expression.
- Backspace removes the last character.
- Escape clears the display.
Repeatable arithmetic
- Recent results stay visible in the history panel.
- Copy history when reconciling a quick set of calculations.
- Clear starts a fresh expression.
Basic math only
- Use it for arithmetic, not scientific functions.
- Percent is converted inside expressions.
- Review high-stakes calculations elsewhere.