log

This log calculator (logarithm calculator) allows you to calculate the logarithm of a (positive real) number with a chosen base (positive, not equal to 1). Regardless of whether you are looking for a natural logarithm, log base 2, log base 10 (decimal logarithm), or log base any number, this calculator will solve your problem.

**How to use calculator:**

Please provide any two values to calculate the logarithm, based on the logarithm equation **log _{b}(x)=y**. It can accept

**e**as a

**base input**.

If you want to calculate the

**decimal logarithm**of a number

**x**;

**log (x)**, then

**base b**should be

**10**.

If you want to calculate the

**logarithm**of a number

**x**to the

**base b**;

**log**, then

_{b}(x)**base b**should be the

**base number**.

If you want to calculate the

**natural logarithm**of a number

**x**;

**ln(x)**, then

**base b**should be

**e**.

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