Type a calculation with the on-screen keys or your keyboard and the answer updates as you go. The calculator follows the standard order of operations, accepts shorthand like 2π and 2(3+1), and keeps your last fifty results in the history list. Everything runs in your browser — no app, no account, nothing sent to a server.
| Type | Result | What it shows |
|---|---|---|
2+3*4 | 14 | Order of operations |
sin(30) | 0.5 | Trigonometry in DEG mode |
log(1000) · ln(e) | 3 · 1 | Base-10 log vs natural log |
80*15% | 12 | Percentages |
2^10 | 1,024 | Powers (^ key) |
5! | 120 | Factorial (! key) |
Yes. It is free, needs no account and runs entirely in your browser. Nothing you type is sent to a server.
Yes. It applies brackets, then powers, then multiplication and division, then addition and subtraction (PEMDAS / BODMAS). 2 + 3 × 4 returns 14.
No. log is the base-10 logarithm and ln is the natural logarithm (base e ≈ 2.71828). ln(x) is about 2.302585 times log(x).
It starts in degrees (DEG). Tap RAD above the display to switch trigonometric functions to radians.
% divides the number before it by 100, so 80 × 15% returns 12 and 200 + 10% returns 200.1. To add a percentage, type 80 × (1 + 15%).