Math calculator

Square Root Calculator

Find the principal square root of a non-negative number.

Enter your values

Results are calculated in your browser.

How this calculation works

√x is the non-negative value whose square is x. Use the calculator above to enter your values. Inputs are checked before a result is shown, and calculations run locally in your browser.

Example: √81 = 9 Results are rounded for display where needed.

Keep calculating

Related math calculators

All Math Calculators →