Returns the base-10 logarithm of a number.
Syntax
LOG10(number)
Number is the positive real number for which you want the base-10 logarithm.
Example
The example may be easier to understand if you copy it to a blank worksheet.
How to copy an example
- Create a blank workbook or worksheet.
- Select the example in the Help topic.
Note Do not select the row or column headers.
Selecting an example from Help
- Press CTRL+C.
- In the worksheet, select cell A1, and press CTRL+V.
- To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.
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| A |
B |
| Formula |
Description (Result) |
| =LOG10(86) |
Base-10 logarithm of 86 (1.934498451) |
| =LOG10(10) |
Base-10 logarithm of 10 (1) |
| =LOG10(1E5) |
Base-10 logarithm of 1E5 (5) |
| =LOG10(10^5) |
Base-10 logarithm of 10^5 (5) |
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