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Calculator
Basic + scientific calculator with keyboard support — right in your browser.
Calculator
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Tip: use your keyboard — digits, + − × ÷ ^, Enter, Backspace, Esc.
Basic and scientific modes
The Basic mode covers everyday arithmetic: digits, decimals, parentheses and the four operators, with live evaluation and full keyboard support. Flip the toggle at the top of the card to switch into Scientific mode — it adds sin / cos / tan, natural log (ln), base-10 log, square root, x², power (x^y) and the two constants π and e. Everything is still handled locally in your browser; nothing is uploaded.
Keyboard shortcuts
- 0-9 . ( ) — digits, decimal, parentheses
- + − * / — operators (x also multiplies)
- ^ — power (JS
**) - Enter or = — compute
- Backspace — delete last character
- Esc or C — All-clear
Trigonometry functions accept radians. To use degrees, wrap the argument in ×π/180 , e.g. sin(30×π/180).