A fast everyday calculator with a scientific mode for trigonometry, logarithms, powers, roots, and factorials. It runs entirely in your browser.
Need a specific formula? Try the percentage, fraction, or quadratic equation calculators.
Yes. Parentheses come first, then powers and roots, then multiplication and division, then addition and subtraction. For example, 2 + 3 × 4 = 14.
Use the DEG/RAD button. In degree mode, sin(30) = 0.5; in radian mode, sin(π/2) = 1.
It divides the number before it by 100, so 200 × 15% = 30.
Yes. Click the calculator, then type numbers and + − * / ^ ( ). Enter calculates, Backspace deletes, and Esc clears.
Computers store decimals in binary, which causes tiny rounding errors. Results are rounded to 14 significant digits so you see the expected answer.