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Exponent Calculator

Last updated: June 2026

Calculator

25=32
💡 Supports negative bases and decimal exponents. Imaginary results are displayed as NaN. Use decimal form for fractional exponents (e.g. 0.5 for ½).
25 =
32
Base
2
Exponent
5
Scientific Notation
3.2000e+1
log₁₀ of Result
1.505150

Repeated Multiplication

25 = 2 × 2 × … (5 times)

2×2×2×2×2=32
12 = 2
22 × 2 = 4
34 × 2 = 8
48 × 2 = 16
516 × 2 = 32

Basic Exponent Laws & Rules

Exponentiation is written as aⁿ, where a is the base and n is the exponent. For positive integer n, this means repeated multiplication of the base n times.

✖️
Multiplying Same Base
aⁿ × aᵐ = a⁽ⁿ⁺ᵐ⁾
EX: 2² × 2⁴ = 4 × 16 = 64 2² × 2⁴ = 2⁽²⁺⁴⁾ = 2⁶ = 64
Dividing Same Base
aᵐ ÷ aⁿ = a⁽ᵐ⁻ⁿ⁾
EX: 2² ÷ 2⁴ = 4 ÷ 16 = 1/4 2² ÷ 2⁴ = 2⁽²⁻⁴⁾ = 2⁻² = 1/4
🔼
Exponent of an Exponent
(aᵐ)ⁿ = a⁽ᵐˣⁿ⁾
EX: (2²)⁴ = 4⁴ = 256 (2²)⁴ = 2⁽²ˣ⁴⁾ = 2⁸ = 256
Negative Exponent
a⁻ⁿ = 1 / aⁿ
EX: 2⁻³ = 1 ÷ 2 ÷ 2 ÷ 2 = 1/8 2⁻³ = 1 / 2³ = 1/8
🔢
Product Raised to Power
(a × b)ⁿ = aⁿ × bⁿ
EX: (2 × 4)² = 8² = 64 (2 × 4)² = 2² × 4² = 4 × 16 = 64
📐
Quotient Raised to Power
(a/b)ⁿ = aⁿ / bⁿ
EX: (2/5)² = 2/5 × 2/5 = 4/25 (2/5)² = 2²/5² = 4/25
1️⃣
Exponent of One
a¹ = a
Any base raised to 1 equals itself.
0️⃣
Exponent of Zero
a⁰ = 1
Any base raised to 0 equals 1. Proof: aⁿ × a⁰ = a⁽ⁿ⁺⁰⁾ = aⁿ, so a⁰ must be 1.
Fractional Exponent
a^(1/n) = ⁿ√a
EX: 8^(1/3) = ∛8 = 2 8^(2/3) = (8^(1/3))² = 2² = 4 Use decimal form in calculator (e.g. 0.333)

Negative Bases

Even positive exponent
(-a)ⁿ = aⁿ (positive result)
(-2)⁴ = 16
Odd positive exponent
(-a)ⁿ = -aⁿ (negative result)
(-2)³ = -8
Fractional exponent
Involves imaginary numbers — cannot take even root of negative number.
(-8)^(1/2) = NaN

Calculate base, exponent, or result — enter any two values to solve for the third. Supports negative bases, decimal exponents, and Euler's number (e).

The Exponent Calculator is a powerful mathematical tool designed to evaluate exponential expressions, where a base number is raised to a specific power. Exponents represent repeated multiplication of the base by itself. For example, in the expression 2^3, 2 is the base and 3 is the exponent (or power), meaning 2 multiplied by itself 3 times (2 * 2 * 2 = 8). Exponents are fundamental to algebra, calculus, finance, and physics.

The calculator handles various types of exponents, including positive integers, negative integers, zero, and fractional exponents. Any number raised to the power of zero is mathematically defined as 1 (e.g., 5^0 = 1). Negative exponents represent the reciprocal of the base raised to the positive power (e.g., 2^-3 = 1 / 2^3 = 1/8 = 0.125). Fractional exponents represent roots; for instance, a base raised to the power of 1/2 is equivalent to its square root, and a power of 1/3 represents its cube root.

Exponents are governed by key algebraic laws that simplify complex operations. The Product Rule states that when multiplying expressions with the same base, you add the exponents: (a^m * a^n = a^(m+n)). The Quotient Rule states that when dividing, you subtract the exponents: (a^m / a^n = a^(m-n)). The Power Rule states that raising a power to another power requires multiplying them: ((a^m)^n = a^(mn)). The exponent calculator applies these rules to deliver precise decimal or integer results.

Exponential calculations are essential for modeling growth and decay processes. In finance, compound interest is calculated exponentially: Future Value = Present Value * (1 + r)^n. In biology, bacterial growth follows exponential curves, doubling at regular intervals. In physics, radioactive decay is modeled using negative exponents, representing how fast a substance loses mass over time.

Additionally, exponents are the basis for scientific notation, which is used to write extremely large or small numbers compactly (e.g., the speed of light is roughly 3 * 10^8 meters per second). By automation of these calculations, the exponent calculator simplifies numeric operations in research, engineering, and compound interest planning.

How it Works & Formula

y = x^n

Calculates a base x raised to the power of exponent n. If n is negative, it computes 1 / (x^|n|).

Practical Examples

Example 1: Negative Exponent

5^-2 = 1 / 5² = 1/25 = 0.04.

Frequently Asked Questions

What is any number raised to the power of 0?

Any non-zero number raised to the 0 power is always equal to 1.