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Exponent calculator

Solve for a power, the base, or the exponent from the other two values.

Get started

  1. Use the example values or enter your own measurements.
  2. Calculate, then copy the result or download the available details.

Example

Input

Base 2, exponent 5

Expected result

32

Try it

Good to know

The calculation runs in your browser. Use consistent units in fields with no explicit unit.

Calculation method

For y = bⁿ, solve the exponent with logarithms when b and y are positive and b ≠ 1. Solving for a real base with a nonzero even integer exponent can produce two roots.

y=bp,p=ln⁡yln⁡b,b=ypy=b^p,\qquad p=\frac{\ln y}{\ln b},\qquad b=\sqrt[p]{y}

Calculation mode

Power
  • Base
  • Exponent
Base
  • Exponent
  • Power value
Exponent
  • Base
  • Power value