Power & Root Calculator

Calculate powers, square roots and nth roots instantly. Enter a base, exponent or root degree and compare the results.

How to use Power & Root Calculator

Calculate powers, square roots and nth roots instantly. Enter a base, exponent or root degree and compare the results.

  1. Enter the requested values in the relevant fields.
  2. Check the units and calculation options.
  3. Compare the result with the assumptions in your scenario.

Inputs are processed in your browser unless the tool explicitly states that it retrieves reference data. Verify the result against your own context before making an important decision.

Power and root example

210 equals 1024. A root reverses a power: √81 is 9 because 9² is 81. Likewise, ∛125 is 5 because 5³ is 125.

An even root of a negative real number has no real result. With fractional powers, check the base, expected number set and rounding precision together.