Logarithm Calculator
Calculate the logarithm of a given number with any base.
loga(b)
Result:
loga(b) =
A logarithm is a mathematical function that determines the exponent to which a specific base must be raised to obtain a given number.
For example, in the equation 102 = 100, the logarithm of 100 with base 10 is 2 because 10 raised to the power of 2 equals 100.
102 = 100
log10(100) = 2
More examples:
- 103 = 1000, so log10(1000) = 3
- 52 = 25, so log5(25) = 2
- 43 = 64, so log4(64) = 3
- 90 = 1, so log9(1) = 0
How to use the Logarithm Calculator?
Using this calculator is very simple:
- Fill in the "Logarith of" and "With base" fields.
- Get your result.
For example:
