Calculate logarithms with any base, or evaluate exponents (b raised to the power of x).
Calculate logarithms (given a base and value) or exponents (given a base and power) — the two are inverse operations, so this tool covers both directions in one place for algebra, science, or engineering calculations.
Example: log₁₀(1000) = 3 (since 10³ = 1000) — enter your own base and value to compute either the logarithm or the exponent instantly.
A logarithm answers the question "to what power must the base be raised to get this value?" An exponent is the direct calculation of a base raised to a power. This calculator handles both, with any base.
A logarithm answers the question "to what power must the base be raised to get this value?"
An exponent is the direct calculation of a base raised to a power.
Yes — common bases like base 10 and base e (natural log) are available as quick presets, and you can also enter any custom base.
Yes — alongside logarithms, it can evaluate exponential expressions like a^b, which is the inverse operation and often useful for checking your logarithm results.
Logarithms and exponents are inverse operations of each other, since a logarithm finds the power needed to reach a value, while an exponent directly computes the result of raising a base to a power.