Raise any number to any power — integers, decimals, fractions, and negatives — with a fast, accurate result you can copy.
Use “e” for scientific notation — e.g. 4e2, 2e-6, 2.46e15
This free tool calculates the value of any base raised to the nth power and shows the final result alongside the full calculation. It supports large numbers, negatives, decimals, and fractions.
These examples show how the calculator expands each expression:
| Expression | Expansion | Result |
|---|---|---|
| 23 | 2 × 2 × 2 | 8 |
| 52 | 5 × 5 | 25 |
| 104 | 10 × 10 × 10 × 10 | 10,000 |
| 3−2 | 1 ÷ (3 × 3) | 0.1111… |
| 90.5 | √9 | 3 |
| 70 | — | 1 |
Enter the base and exponent. Positive and negative integers, decimals, fractions, and scientific notation (e.g. 3e5) all work.
Press Calculate to see the result together with the full step-by-step expansion.
Press Clear (or Esc) to reset every field and start over.
An exponent shows how many times a base number is multiplied by itself. In xn, the base x is multiplied by itself n times. For example, 43 = 4 × 4 × 4 = 64.
A negative exponent means take the reciprocal of the positive power: x−n = 1 / xn. For example, 3−2 = 1 / 32 = 1 / 9 ≈ 0.1111.
A fractional exponent represents a root. x1/n is the nth root of x. For example, 91/2 = √9 = 3 and 81/3 = 2.
Any non-zero number raised to the power of 0 equals 1 — for example, 70 = 1. (The value of 00 is treated as 1 in most contexts but is sometimes left undefined.)
“e” is scientific notation, meaning × 10 raised to a power. For example, 4e2 = 4 × 102 = 400 and 2e−6 = 2 × 10−6 = 0.000002.
Yes. The calculator supports positive and negative integers, decimals, fractions, and very large numbers, and shows the full step-by-step calculation alongside the result.
For deeper background on exponents and exponentiation, see these authoritative sources:
Working through math, business, or planning problems? These may also help: