Calculate
Online calculator
Add, subtract, multiply, and divide with decimals, percent, and parentheses. Expressions are parsed safely — no eval() on raw strings. Keyboard input works when the page is focused.
Ready
0
How to use
Click the pad or type on your keyboard. Press Enter or = for the result, Escape to clear, Backspace to delete.
Questions
- Is eval used?
- No. A small expression parser tokenizes and evaluates +, -, ×, ÷, %, and parentheses.
- What does % do?
- After a number (as in 50%) it means percent (÷100). Between two numbers it is modulo.