Exponent calculator
Calculator
The calculator needs JavaScript. The tables below give the same numbers for common cases.
How it is worked out
- Multiply 2 by itself 10 times.
- 2^10 = 1024.
| Inputs | Answer |
|---|---|
| Base: 2; Exponent: 10 | 2^10 = 1,024. |
| Base: 5; Exponent: -2 | 5^-2 = 0.04. |
| Base: 9; Exponent: 0.5 | 9^0.5 = 3. |
| Base: 10; Exponent: 12 | 10^12 = 1,000,000,000,000. |
How to use it
An exponent says how many times to multiply the base by itself: 2¹⁰ = 2 × 2 × … × 2 (ten times) = 1,024. A negative exponent is a reciprocal: 2⁻² = 1 ÷ 2² = 0.25. Any non-zero number to the power 0 is 1.
For whole-number bases and exponents the calculator gives the exact integer, even when it is very large. Fractional exponents are roots: x^(1/2) is the square root.
Frequently asked questions
What is 2 to the power of 10?
1,024.
What is a negative exponent?
The reciprocal of the positive power: 2⁻² = 1/4 = 0.25.
What is any number to the power 0?
1 (except 0⁰, which is usually left undefined).
Method: standard arithmetic shown step by step; no outside data is used. Checked 2026-11-12.
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General information only. Results are plain arithmetic on the numbers you enter; check anything important (money, health, school work) against your own records or the official source.