Full scientific calculator — trig, logs, powers, constants, and history. Runs entirely in your browser.
Everything runs locally in your browser — no data is sent anywhere.
Select DEG, RAD, or GRAD at the top of the keypad. This affects all trigonometric functions.
Use the keypad buttons or your physical keyboard to build your expression. Use 2ND to access inverse trig functions.
Hit the equals key (or press Enter) to evaluate. The result appears instantly on the display.
Every calculation is saved in the history panel on the right. Tap any entry to load its result back into the calculator.
A full scientific calculator that lives in your browser — no app, no install, no limits.
sin, cos, tan and their inverses in degrees, radians, or gradians — plus hyperbolic functions.
Every result is saved so you can review your work or tap a previous answer to reuse it.
All computation happens locally. Nothing leaves your device — ever.
Use your physical keyboard for fast entry. Operators, digits, Enter, and Backspace all work.
MC, MR, M+, M−, and MS let you store and recall a value across multiple calculations.
No account, no subscription, no watermark. Use it as much as you want, for free, always.