An exponent tells you how many times to multiply the base by itself. In 2 to the power of 3, the base is 2 and the exponent is 3, so it is 2 times 2 times 2, which is 8.

What does a negative exponent mean?

A negative exponent means one divided by the base raised to the positive power. So 2 to the power of minus 3 is 1 divided by 8, which is 0.125. The calculator handles negative exponents.

What is a number to the power of zero?

Any non zero number to the power of zero is 1. This keeps the rules of exponents consistent. The calculator returns 1 for any base raised to zero.

Exponent Calculator

Raise a number to a power. Enter the base and the exponent, and the calculator shows the result. It handles whole, negative, and decimal exponents, so you can work out anything from 2 to the power of 10 to a square or cube root written as a fractional power.

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Base

Exponent (power)

result

How it works

The exponent is how many times the base is multiplied by itself. A negative exponent flips it to one over the power, and a fractional exponent is a root, so a power of 0.5 is a square root. The calculator applies the standard power rule.

Worked example

2 to the power of 10 is 1,024. 5 to the power of minus 2 is 1 divided by 25, which is 0.04. And 9 to the power of 0.5 is the square root of 9, which is 3.

Related calculators

Square Root Calculator: roots of a number.
Logarithm Calculator: the reverse of powers.
Scientific Calculator: advanced functions.
Factorial Calculator: n factorial.

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