Free tools
English
Basic and scientific calculator
Calculate arithmetic and scientific expressions with a keypad, angle modes, Ans, memory, history and CSV export. Inputs are processed in this browser without uploading or autosaving.
No account needed
Loading tool…
How to use
- 1Enter an expression or use the keypad; choose DEG or RAD.
- 2Run or press Enter and review exact fractions or approximations.
- 3Use Ans/memory, reload history or export CSV.
Good to know
Finite-decimal arithmetic retains exact fractions; scientific functions use floating-point approximations. percent(50)=0.5; 5%2=1 (remainder). Function names use common math notation. Ans, M and 20 history entries stay in this tab only.
Ads may process connection data. Personalization follows your privacy choices. Privacy (English)