Table of Contents
This guide explains how to use HARMEAN Function in Excel, including its syntax, required arguments, practical examples, and common errors.

Description: The function returns the harmonic mean of a dataset, the harmonic mean is the reciprocal of the arithmetic mean of the reciprocals.
Syntax: HARMEAN (number1, [number2]. )
Inside:
- number1, [number2]. ) : The values you want to calculate the harmonic mean value, where number1 is the required parameter, the remaining values are optional and contain up to 255 number parameters .
Attention:
- Note: harmonic average
- Arguments can be numbers, names or arrays that contain numbers.
- When typing logical values or textual numbers directly -> these values are still counted.
- If the reference argument or array contains logical values or text -> these values are ignored, but a value of 0 is still counted.
- The value of the argument is a text or an error value that cannot be converted. The function will report an error.
- If any data point ? 0 -> the function returns the #NUM! Error value
- The average harmonic equation is:
[frac {1} {{{H_y}}} = frac {1} {n} sum {frac {1} {{{Y_i}}}}]]
For example:
Calculate the harmonic mean of number values in the following data table:

- In the cell to calculate enter the formula : = HARMEAN (D6: D10)

- Press Enter -> harmonic average of number values is:

- Where number values are logical or text values -> they are ignored:

Above are instructions and some specific examples when using HARMEAN function in Excel.
Good luck!
FAQ
What does the HARMEAN function do in Excel?
The HARMEAN function performs the calculation described in this guide. Use the correct arguments and compatible data types for reliable results.
How do I enter the HARMEAN function correctly?
Start with an equals sign, enter HARMEAN, add the required arguments inside parentheses, and confirm that cell references and separators are correct.
Why does the HARMEAN function return an error?
Common causes include missing arguments, invalid data types, incorrect cell references, unsupported values, or regional separator settings.
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