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How to Use Excel LOG10 Function?

LOG10 Pin

Logarithms are the inverse of the exponential function. It is a mathematical expression used to find the power a base must raise to yield a given number. LOG in Excel is categorized as a Math/Trigonometry function. Generally, the Excel LOG10 function calculates the base 10 logarithms of a given number.

Let’s see the Excel LOG10 Function with its basic syntax, description, and examples. Get an official version of MS Excel from the following link:

Excel LOG10 functionPin
Excel LOG10 function

Description of LOG10 Function

  • It is one of the built-in functions in Microsoft Excel.
  • This function returns the base10 logarithm of a given number.
  • For example, LOG10(10) returns the value 1.


  • Here, you will see the syntax of the LOG10 function.
  • To apply this function on your spreadsheet, you have to select a cell and enter the formula in the following format.
  • Once you enter the formula, just click on the Enter button to get the result.


Parameter Description

  • Number – The positive number, that you want to find the base 10 logarithm value.

1) If you give non-numeric values such as letters and special characters to the argument, it will return #VALUE! Error.
2) You cannot use negative integers as an argument, it will return #NUM! Error value.


Let’s see some examples to understand how LOG10 Function works. Here, we have shown some numbers and their equivalent LOG10 value.

  • Initially, you have to open your Excel workbook on your PC and launch a worksheet that has data.
  • For example, we have given the input numbers in Column B, and we will get the base 10 logarithm values using the LOG10 function.
Input ValuesPin
Input Values
  • Then, you have to enter the formula in the cell as shown below to get the result.
Enter the formulaPin
Enter the formula
  • After entering the formula, you need to click the Enter button to get the output, as shown below. You can drag down the cell to fill the remaining cells.

Input that Causes Error

By seeing the below-given example, you will understand the input that causes errors in the spreadsheet.

  • If you give any non-numeric values such as letters and special characters to the argument, it will return #VALUE! Error.
  • If you use any type of negative integer as an argument, it will return #NUM! Error value.

Thus, you can learn how to use the LOG10 Function in Excel with the help of the above examples.


I hope this article helped you understand the usage of the Excel LOG10 Function with its syntax, description, and clear-cut examples. Drop your feedback in the comment section. To learn more about Excel functions, then visit our webpage

Video Tutorial

Use the following video to know how to apply the Excel LOG10 function in the worksheet.

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