In this Article
This Tutorial demonstrates how to use the Excel LOG10 Function in Excel to calculate the base-10 logarithm of a number.
LOG10 Function Overview
The LOG10 Function Calculates the base-10 logarithm of a number.
To use the LOG10 Excel Worksheet Function, select a cell and type:
(Notice how the formula inputs appear)
LOG10 Function Syntax and Inputs:
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=LOG10(number) |
number – A number.
LOG10 Function
The LOG10 Function returns the logarithm of a number to base 10.
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=LOG10(100) |
LOG10 Function – Decimal
The LOG10 Function can also return the logarithm of a decimal number to base 10.
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=LOG10(0.1) |
LOG10 Function – Negative Number/Zero
The LOG10 Function will return an error if the argument is zero or a negative number.
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=LOG10(0) |
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=LOG10(-3) |
LOG10 Function – Power of 10
The LOG10 Function will return the exponent if the argument is expressed as a power of 10.
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=LOG10(10^6) |
LOG10 in Google Sheets
The LOG10 Function works exactly the same in Google Sheets as in Excel:
Additional Notes
Use the LOG10 Function to calculate the logarithm of a number to base-10. Simply enter any number directly into the formula, or reference a cell containing a number.
LOG10 Examples in VBA
You can also use the LOG10 function in VBA. Type:
application.worksheetfunction.log10(number)
Executing the following VBA statements
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Range("B2") = Application.WorksheetFunction.Log10(Range("A2")) Range("B3") = Application.WorksheetFunction.Log10(Range("A3")) Range("B4") = Application.WorksheetFunction.Log10(Range("A4")) Range("B5") = Application.WorksheetFunction.Log10(Range("A5")) Range("B6") = Application.WorksheetFunction.Log10(Range("A6")) Range("B7") = Application.WorksheetFunction.Log10(Range("A7")) Range("B8") = Application.WorksheetFunction.Log10(Range("A8")) Range("B9") = Application.WorksheetFunction.Log10(Range("A9")) |
will produce the following results
For the function arguments (number, etc.), you can either enter them directly into the function, or define variables to use instead.
Return to the List of all Functions in Excel
