Math & Trig
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=LOG10()
Returns the base-10 logarithm of a number.
Applies To:
Excel for Microsoft 365Excel for Microsoft 365 for MacExcel 2024Excel 2024 for MacExcel 2021Excel 2021 for MacExcel 2019Excel 2016
=LOG10(number)
Hover argument names in the table for details.
Output typeNumber
Popularity8 / 100
VolatileNo
Dynamic ArrayNo
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◧ Arguments
| Argument | Type | Required | Description |
|---|---|---|---|
number |
Number | Required | The positive real number for which you want the base-10 logarithm. |
▣ Examples
Base 10 logarithm of 86. The result, 1.9345, is the power to raise the base, 10, to equal 86.
=LOG10(86)
Result:
1.9345
Base 10 logarithm of 10. This is the power 10 is raised to to equal 10.
=LOG10(10)
Result:
1
Base 10 logarithm of 1E+5. This is the power 10 is raised to to equal 100000 (1E+5).
=LOG10(100000)
Result:
5
Base 10 logarithm of 10^5. Same as above; 1E+5 = 100000.
=LOG10(10^5)
Result:
5
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