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Natural Log Calculator

Enter x to calculate ln(x):
Number (x):

About Natural Log Calculator

The Natural Log Calculator is used to calculate the natural logarithm of a number x, which is generally written as ln(x) or loge(x).

Natural Log

The natural logarithm is the logarithm to the base e (Euler's number, approximately equal to 2.718281828). It is generally written as ln(x), loge(x) or sometimes, if the base of e is implicit, as simply log(x). It is often used in mathematical analysis, physics, chemistry, statistics, economics, and some engineering fields.