Exponent Calculator

Use this exponent calculator to evaluate powers from positive, negative, integer or decimal bases in seconds. It works well for school math, algebra review, finance formulas, exponential growth checks, programming tasks, physics exercises and any situation where you need a fast power result without doing the multiplication by hand.

Enter a base and an exponent to see the main result, scientific notation and an equivalent reciprocal form when the exponent is negative. That makes it easier to verify examples such as 2^3, 10^-2, 5^0 and fractional exponents without switching to a separate scientific calculator.

When the case is simple, the tool also expands the repeated multiplication so the logic stays visible. If the operation leaves the real-number domain, such as an incompatible fractional exponent on a negative base, the calculator flags it as invalid instead of returning misleading output.