LOG

Returns the logarithm of a number to the given base.

Syntax

LOG(number; [base])

number: The positive real number that you want to calculate the logarithm of. Eg., 50

base: The base of the logarithm. Defaults to 10 if omitted. Eg., 2

Examples

Formula	Result
=LOG(50;10)	1.698970004
=LOG(10)	1
=LOG(D2;2)	5.087462841

Get a hands-on experience of the function in the embedded range below.

Possible Errors

Errors	Meaning
#N/A!	The function could not find the value it was asked to look for. Commonly occurs in VLOOKUP and similar functions.
#NAME!	The function name is incorrect or invalid. The given defined name (if any) is invalid. There is a typo in the defined name used in the function. Double quotes are missing for text values in the function. Colon missing in a cell range reference.
#VALUE!	The given argument's data type is incorrect or invalid. For example, the function =DATE(A1:A3) will return a #VALUE error when a text value is present in the range.
#REF!	The given cell reference is incorrect or invalid. This error may occur when a cell/range has been deleted, moved, or pasted over.
#NUM!	The given number is less than or equal to 0.

Similar Functions

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