Use the best online calculator for any math calculations on PC and smartphones. The free calculator allows you to quickly and accurately perform arithmetic, calculate percentages, raise to a power or take a root
If you prefer keyboard input of math formulas, you can type directly into the input bar. Pressing ↵ starts the calculation. To calculate a function like 'sine' with an argument like 90, input the corresponding function name followed by the argument 90 in parentheses. Example: sin (90)