A free online calculator for everyday math. Add, subtract, multiply, divide, and work with percentages right in your browser.
Tip: you can also type with your keyboard. Press Enter for =, Esc to clear, Backspace to delete.
This standard calculator handles the four basic operations — addition, subtraction, multiplication, and division — plus percentages and sign changes. It works entirely in your browser, so nothing you type is sent anywhere.
For specialised math, try our percentage calculator, discount calculator, tip calculator, or loan calculator.