Exponent Calculator
Compute a^b for any real base and exponent, including negative and fractional powers.
Results are estimates for general information only and are not professional financial, medical, tax, or legal advice. Read the full disclaimer.
How it works
a^b = exp(b · ln a) for a > 0. Negative bases require integer exponents.
2^10 = 1024. 8^(1/3) = 2. 5^-2 = 0.04.
Frequently asked questions
- What is a fractional exponent?
- a^(1/n) is the nth root of a.
- Why can't I do (−2)^0.5?
- The square root of a negative number isn't real.
- What is 0^0?
- Conventionally 1 in most contexts, though undefined analytically.
- Order of operations?
- Exponents bind tighter than × or ÷.
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