Calculate the harmonic mean of positive numbers.
Last updated: June 2026 | By Patchworkr Team
Harmonic mean is the right average for rates and ratios.
For positive data, HM is less than or equal to GM and AM.
Find the harmonic mean of 2, 4, and 8.
1. Reciprocal sum = 1/2 + 1/4 + 1/8 = 0.875
2. Count = 3
3. HM = 3 / 0.875 = 3.4286
Final answer: 3.4286
Can I use zero?
No. The harmonic mean requires positive, non-zero values.
Can I use negative numbers?
Not in this simplified calculator.
When should I use it?
Use it for rates, ratios, and speeds.
Is it always smaller than the arithmetic mean?
Yes, for positive data it is never larger.
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