Math

Square Root Calculator

Find a square root or nth root from a number and root degree.

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How to use this calculator

Find a square root or nth root from a number and root degree.

nth root of x = x^(1/n). Negative values are supported when the root degree is an odd whole number.

What the result means

The calculator uses the values you enter and applies the method shown above. Change any input and calculate again to compare another scenario.

Frequently asked questions

What is a square root?

A square root is a value that produces the original number when multiplied by itself.

Can this calculator find cube roots?

Yes. Enter 3 as the root degree to calculate a cube root.

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Method, assumptions & corrections

See how formulas, sources and limitations are handled across ERICH Calculators.