Calculyn

Square Root Calculator

Find the square root, cube root, or any nth root of a number.

Results update as you type.

Square root

12

Perfect root

Square root
12
Cube root
5.241483
Number squared
20,736
Square root12

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Quick answer

The square root of 144 is 12, because 12 × 12 = 144.

How it works

The nth root of a number is the value that, multiplied by itself n times, gives the number.

Formula

ⁿ√x = x^(1/n)

Assumptions & limitations

  • Results are rounded for display.

Frequently asked questions

Can you take the cube root of a negative number?

Yes. The cube root of −27 is −3. Even roots (square, 4th) of negatives aren't real numbers.