LN

MS Excel Spreadsheet

See Also

Returns the natural logarithm of a number. Natural logarithms are based on the constant e (2.71828182845904).

Syntax

LN(number)

Number    is the positive real number for which you want the natural logarithm.

Remark

LN is the inverse of the EXP function.

Example

The example may be easier to understand if you copy it to a blank spreadsheet.

ShowHow?

Formula Description (Result)
=LN(86) Natural logarithm of 86 (4.454347)
=LN(2.7182818) Natural logarithm of the value of the constant e (1)
=LN(EXP(3)) Natural logarithm of e raised to the power of 3 (3)