Free Exponent Calculator 2026 — Powers and Roots Online

Calculate any exponent (power) or root instantly. Exponent notation: x^n means x multiplied by itself n times. Examples: 2^10 = 1,024, 3^5 = 243, 10^6 = 1,000,000. Square roots: √144 = 12. Cube roots: ∛27 = 3. Fractional exponents: x^(1/2) = √x, x^(1/3) = ∛x. This calculator handles positive, negative, and fractional exponents. No sign-up required — your data never leaves your browser. Works instantly on desktop, tablet, and mobile. Completely free with no daily usage limits, no watermarks, and no account needed. Trusted by students, professionals, and businesses worldwide. FixFlowHub is a browser-based toolbox with 120+ free utilities covering PDF, image, text, calculator, and productivity tools.

Frequently Asked Questions

What is the rule for multiplying exponents?

When multiplying same bases: x^a × x^b = x^(a+b). Example: 2^3 × 2^4 = 2^7 = 128. When dividing same bases: x^a ÷ x^b = x^(a-b). Power of a power: (x^a)^b = x^(a×b). Zero exponent: x^0 = 1 for any non-zero x.

What is a negative exponent?

A negative exponent means the reciprocal: x^(-n) = 1/x^n. Examples: 2^(-3) = 1/2³ = 1/8 = 0.125, 10^(-2) = 1/100 = 0.01. Negative exponents are used to represent very small numbers in scientific notation, like 3.5 × 10^(-9) (3.5 nanoseconds).

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