Excel Function : LOG10
Math and trigonometry
Returns the base-10 logarithm of a number
Microsoft Excel Reference Page
Syntax and Description of the LOG10 Excel Function
The syntax for the LOG10 function in Excel is: =LOG10(number) where "number" is the number for which you want to find the base-10 logarithm.
About LOG10 Excel Function
The LOG10 function returns the logarithm of a number to the base 10.