Scientific Calculator
The Scientific Calculator handles everyday arithmetic plus trigonometric, logarithmic, power, root, and factorial functions, right in your browser — no app or download required.
How to use it
Tap number and operator buttons to build an expression, then press = to evaluate — unclosed parentheses are closed automatically. Function buttons like sin, ln, and log open a fresh set of parentheses for you to fill in; buttons like x², 1/x, n!, and √x apply directly to the number you just typed. Use the Deg/Rad toggle to control how trigonometric functions interpret angles.
9 then pressing √x gives 3. Typing 2 then xʳ then 10 then = gives 1024 (2^10). Pressing 8 then ʳ√x then 3 then = gives 2 (the cube root of 8).
Safe, local evaluation
Expressions are evaluated with a custom parser that runs entirely in your browser — nothing is sent to a server, and it never uses unsafe code evaluation. For percentage-specific problems, try the Percentage Calculator.