Math
Antilog Calculator
Last updated: July 11, 2026
Calculate the antilogarithm (inverse logarithm) of any number. Find b^x for any base b and exponent x.
How to Use This Antilog Calculator
- Choose the base: 10^x (common), e^x (natural), or b^x (custom).
- If using custom base, enter the base value (must be greater than 1).
- Enter the exponent value.
- Click "Calculate Antilog" to see the result.
Antilog Formulas
Common Antilog: antilog₁₀(x) = 10^x
Natural Antilog: exp(x) = e^x where e ≈ 2.71828
General: antilog_b(x) = b^x
Examples
Example 1: Common Antilog
antilog₁₀(3) = 10³ = 1000
Example 2: Natural Antilog
exp(1) = e¹ = 2.71828...
Example 3: Custom Base
2&sup5; = 32
Frequently Asked Questions
What is an antilog?
An antilogarithm (antilog) is the inverse of a logarithm. If log_b(x) = y, then antilog_b(y) = x = b^y. It answers the question "what number has this logarithm?"
What is the relationship between log and antilog?
They are inverse operations. Applying antilog after log (or vice versa) returns the original number. For example: antilog₁₀(log₁₀(100)) = 100.