A fast calculator for everyday maths and scientific work — tap the buttons or type on your keyboard.
Tip: you can also type on your keyboard — numbers, + − × ÷, Enter for =, Backspace to delete, Esc to clear.
Free tool — the calculation happens in your browser. Nothing is sent anywhere.
A calculator is the tool everyone reaches for, from splitting a restaurant bill to working out a discount, a square root or a power for homework. This free online calculator does basic and scientific maths in your browser, with a clean layout that works on phones, tablets and computers. Add, subtract, multiply and divide, then switch to scientific functions like square roots, powers, sin, cos, tan and logarithms when you need them. It also supports your keyboard, so you can type sums quickly without tapping every button, and there is a clear button to start a fresh sum in one tap. There is nothing to install, no sign-up and no ads getting in the way — just open the page, type your sum and get the answer instantly.
Yes. It is completely free, with no sign-up and no account needed.
Yes. Type numbers and operators on your keyboard and the calculator follows along, which is much faster than tapping buttons.
Square roots, powers, sin, cos, tan and logarithms, alongside the basic add, subtract, multiply and divide.
Yes. The calculator is designed to work on phones, tablets and computers, in any modern browser.
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