Harmonic Mean Calculator
Calculate the harmonic mean of a list of positive numbers entered as comma-, space-, or line-separated values.
Enter positive numbers separated by commas, spaces, or line breaks. Zero is not allowed.
| Metric | Value |
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Privacy: calculations run locally in your browser. No values are stored or transmitted.
How it works
For positive values x₁, x₂, ..., xₙ, the harmonic mean is:
n / (1/x₁ + 1/x₂ + ... + 1/xₙ)
Examples
- 2, 3, 6 → harmonic mean = 3
- Useful for averaging rates such as speed or price-per-unit style data
When to use this tool
This tool is designed for quick, practical tasks such as everyday calculations, data formatting, or simple conversions. It is best used when you need fast results without installing software or using complex tools.
When to use
- Quick checks or one-time calculations
- Validating or converting data before using it elsewhere
- Simple tasks that do not require advanced software
When not to use
- Critical financial, legal, or medical decisions
- Large-scale or automated processing
- Situations requiring guaranteed precision beyond basic validation
Always review results before using them in important contexts.
About this tool
This tool helps you perform quick utility operations directly in your browser. It runs entirely in your browser without sending data to a server.
You can use this tool when handling simple tasks without installing additional software. The results should be interpreted as a processed output based on your input data.
FAQ
- What is the harmonic mean?
The harmonic mean is the number of values divided by the sum of their reciprocals.
- When is the harmonic mean useful?
It is useful for averaging rates, ratios, speeds, and quantities measured per unit when the denominator matters.
- Why can’t the input contain 0?
Because the formula uses reciprocals, and division by zero is undefined.
- Are calculations stored?
No. Everything runs locally in your browser.