The Antilog Calculator finds the inverse of a logarithm for a chosen base. If a logarithm tells you the exponent needed to produce a number, the antilogarithm reverses that operation and returns the corresponding number.
Antilog Formula
If y = logb(x), then the inverse relationship is x = by. For common logarithms with base 10, the antilog of y is 10y.
How to Use the Calculator
- Enter the logarithmic value.
- Specify the base if the calculator asks for one.
- Calculate the antilogarithm.
- Check that the resulting value is positive when working with a standard real logarithm.
Example
The antilog of 2 in base 10 is 10Β² = 100. In base 2, the antilog of 5 is 2β΅ = 32.
Where Antilogs Are Used
Inverse logarithmic calculations appear in scientific scales, exponential models, signal calculations, and other situations where an exponent needs to be converted back to its original quantity.