What is the Exponent Calculator?
The exponent calculator raises a base number to a power, meaning it multiplies the base by itself that many times. It handles negative and fractional exponents too.
How to use the Exponent tool
- Enter Base and Exponent.
- The result updates instantly as you type, or press Calculate.
- Use Try an example to see how it works, and Reset to start again.
Formula
b^e = b × b × … × b (e times). b^−e = 1 ÷ b^e, and b^(1/2) is the square root of b.
Worked example
With base 2, exponent 10, the 2 to the power 10 comes to 1,024. Scientific notation: 1.0240e+3.
Frequently asked questions
What is a negative exponent?
It means the reciprocal: 2^−3 = 1 ÷ 2^3 = 0.125.
What is any number to the power 0?
It equals 1, except that 0^0 is usually left undefined.
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Checked by Calcovate · Formula tested against worked examples · Updated 7 Nov 2026 · How we check our calculators.