Exponent Calculator
Calculate powers — a number raised to an exponent.
Repeated multiplication
An exponent tells you how many times to multiply a number by itself — two to the power of three is two multiplied three times, giving eight. This calculates a number raised to any power, including negative and fractional exponents.
Enter a base and exponent to calculate the power.
The rules that make exponents powerful
Exponents follow neat rules worth knowing: multiplying powers of the same base adds the exponents, and raising a power to a power multiplies them. The less obvious cases have elegant meanings — a negative exponent means one over the number, a fractional exponent means a root (so the power of one-half is a square root), and anything to the power of zero is one. Beyond the rules, exponents describe explosive growth: exponential growth, where a quantity multiplies at each step, quickly outpaces anything linear, which is why compound interest, population growth and viral spread all become dramatic. Grasping that repeated multiplication grows far faster than repeated addition is one of the more important intuitions in all of maths.
Questions & answers
What does a negative or fractional exponent mean?
A negative exponent means one over the number raised to that power; a fractional exponent means a root — the power of one-half is a square root.
Why does anything to the power of zero equal one?
It follows from the rule that dividing powers subtracts exponents — a number divided by itself is one, and that is the power of zero.
Is anything uploaded?
No. The calculation happens in your browser.