Scientific Calculator
A free online scientific calculator with trigonometry, logarithms, powers, roots, parentheses and constants (π, e). Type or tap; works offline in your browser.
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The mod key inserts %, a binary remainder operator (not percentage). Percent math? Percentage calculator.
Free online scientific calculator
Type an expression or tap the keys. It supports powers, roots, trigonometry, logarithms and constants — and updates the result as you type. Everything runs locally in your browser.
FAQ
Which functions are supported?
Basic arithmetic plus powers (^), square root, sin, cos, tan (and their inverses), natural log (ln), log base 10 (log), parentheses, the constants π and e, and binary remainder (mod, entered as %).
Degrees or radians?
Use the DEG / RAD toggle. Trigonometric functions use the mode you select.
Does it run online only?
No. It runs entirely in your browser and works offline once the page has loaded.
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