Math

Exponent Calculator

Raise any base to any exponent, including negative and fractional exponents.


Exponent Calculator

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Raise any base to any exponent — positive, negative, zero, or fractional.

How it works

The result is the base multiplied by itself the number of times the exponent specifies: result = base^exponent. A negative exponent flips the result into a fraction (base⁻ⁿ = 1 ÷ baseⁿ), and any nonzero base raised to the power of 0 equals 1.

What this does not include

This is a plain power calculation, not a model of change over time — for a quantity growing continuously at a fixed rate, see this site’s exponential growth calculator instead.

How to use this calculator

  1. Enter the base.
  2. Enter the exponent.

A worked example

2¹⁰ = 1,024.

3⁴ = 81.

2⁻³ = 1/2³ = 0.125 — a negative exponent produces a fraction, not a negative number.

What the variables mean

Variable Meaning
Base The number being raised to a power
Exponent How many times the base is multiplied by itself (or divided, if negative)

Edge cases worth knowing

A negative exponent means “reciprocal,” not “negative result.” 2⁻³ isn’t −8, it’s 1/8 = 0.125 — a very common point of confusion.

Zero raised to a negative exponent is undefined — it would require dividing by zero, so the calculator declines to show a result for that combination.

Why does anything to the power of 0 equal 1?

It follows from the pattern of dividing by the base each time you decrease the exponent by 1 — baseⁿ ÷ base = baseⁿ⁻¹, and continuing that pattern down to base⁰ always lands on 1.

What does a negative exponent mean?

It means “take the reciprocal” — 2⁻³ is 1 ÷ 2³, which is 1/8, or 0.125.

Can the base or exponent be a decimal?

Yes — a fractional exponent corresponds to a root (base^0.5 is the same as the square root of base), and a decimal base works exactly as you’d expect.

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Written by

J. Adeyemi

Statistics writer

J. Adeyemi writes the statistics and probability calculators, from descriptive summaries through to distributions and conditional probability. The recurring theme is scope: each page states precisely which question it answers, because most statistical mistakes come from applying a correct formula to the wrong question. Related-but-different measures get separate pages rather than being quietly merged.

Reviewed by

T. Okafor

Calculator reviewer — mathematics

T. Okafor reviews the mathematics calculators, verifying algebraic correctness and, just as importantly, behaviour at the edges — division by zero, undefined results, and the floating-point cases where a formula technically returns a number that should be reported as undefined. Every test case is recomputed independently rather than taken on trust.

How we write and review

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