Simple, fast arithmetic. Keyboard supported.
This free online calculator handles the four basic operations plus percentages, right in your browser. There is nothing to install and no sign-up โ open the page and start typing. It works on desktop and mobile, and you can use your keyboard number keys for speed.
For more advanced needs, try the scientific calculator for trigonometry and logarithms, or the compound interest calculator to project savings growth.
Yes, completely free with no sign-up or ads to click through. It runs entirely in your browser.
Yes, you can type numbers and operators using your keyboard for faster calculations.
Once the page has loaded, the calculator works without an internet connection.
For trig, logs and powers, use our scientific calculator linked above.