Scientific Calculator — free online
Sometimes the calculator on your phone just isn't enough. You need a square root, a power, or a sine, and the basic one only does plus and minus. We added a free tool that handles all of it — Scientific Calculator — right in your browser.
What it does
It works like a proper scientific calculator. You get sine, cosine and tangent, logarithms, square roots, powers, and the everyday plus, minus, times and divide. Type your numbers, pick the function you need, and the answer comes up straight away.
Nothing leaves your device
The whole thing runs in your browser. Your numbers stay on your screen — nothing is sent anywhere, nothing is uploaded, and nothing is saved. When you close the page, it's gone.
How to use it
- Open Scientific Calculator.
- Type your number and tap the function you need, like sin, log or the square root.
- Read the result, then copy it wherever you need it.
It's free with no limit. There are more small tools on the Apps page.