Find the square root, cube root and any nth root of a number, with squares and cubes too.
loading toolHow to use the square root calculator
- Type your numbers in the boxes (pick your currency or units if asked).
- The answer updates as you type: no button to press.
- Copy the result, or share it on WhatsApp with one tap.
Questions
Can I take the cube root of a negative number?
Yes: the cube root of −8 is −2. Even roots of negative numbers are not real.
Is my data private?
Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.
Is it free?
Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.
