The **harmonic mean** of a set of numbers is calculated using the following formula:

n / (1/x_{1} + 1/x_{2} + 1/x_{3} + … + 1/x_{n})^{}

where *n* is the total number of values and x_{i} are the individual numbers in the dataset.

To find the **harmonic mean** for a given set of numbers, simply enter the comma-separated values in the box below, then click the “Calculate” button.

*Note: all values in the dataset must be positive in order to calculate the harmonic mean.*