Exponent Calculator
Enter a base and an exponent to calculate the result, including support for negative and fractional exponents.
Last updated: September 22, 2026
Frequently asked questions
What is 2 to the 10th power?
1,024 - doubling 2 ten times (2 × 2 × 2... ten times) gives 1,024.
What does a negative exponent mean?
A negative exponent means the reciprocal of the positive power - for example, 2^-3 = 1 ÷ 2^3 = 1/8 = 0.125.
What is any number raised to the power of 0?
It equals 1, by definition, for any nonzero base - this isn't something you calculate from repeated multiplication, it's a mathematical convention that keeps the rules of exponents consistent (e.g., x^a ÷ x^a = x^0 = 1).
How do I calculate a fractional exponent, like 8^(1/3)?
A fractional exponent represents a root: the denominator is the root and the numerator is the power. 8^(1/3) means the cube root of 8, which is 2. 8^(2/3) means the cube root of 8, squared, which is 4.
What is 0 raised to the power of 0?
By the most common mathematical convention, 0^0 is defined as 1, though it's a special edge case debated in some contexts - most calculators, including this one, follow the standard convention.
What does a decimal exponent like 2^2.5 mean?
It combines a whole-number power with a root - 2^2.5 = 2^2 × 2^0.5 = 4 × √2 ≈ 5.657, blending exponentiation and root-taking into a single fractional-power calculation.
Is 'exponent' the same as 'power'?
Yes - in '2 to the power of 10' or '2 with an exponent of 10,' both phrasings describe the same operation, written as 2^10, and this calculator computes exactly that regardless of which term you use.