Logarithm Calculator
Calculate the logarithm of a number.
Result
3
log10(1.000) = 3
Result in all units
Step-by-step solution
What Is a Logarithm?
A logarithm is the inverse operation of exponentiation: it finds the exponent needed to reach a given result with a certain base. It is used in science and engineering for scaling.
How is it calculated?
How Is It Calculated?
logₐ(x) = y ⟺ aʸ = x
- Enter the base and the number.
- The result shows which power of the base gives the number.
For example, log₂8 = 3.
Frequently Asked Questions
What is the natural logarithm?
It is the logarithm with base e (≈2,718) and is denoted by ln.