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HHI (Market Concentration)

Calculate HHI (Market Concentration) instantly with the exact formula and a worked example.

HHI (Market Concentration)

Share 1%
Share 2%
Share 3%
Share 4%
HHI
1,850
Calculate HHI (Market Concentration) instantly with the exact formula and a worked example.

More about: HHI (Market Concentration)

What it calculates

The “HHI (Market Concentration)” calculator computes HHI from 4 parameters: share 1 (%), share 2 (%), share 3 (%), share 4 (%).

Applied in business management, unit economics, and financial modeling.

Example calculation

With parameters Share 1 = 30 %, Share 2 = 25 %, Share 3 = 15 %, Share 4 = 10 % the result is 1,850.

How to use

  1. Enter share 1, share 2, share 3 and share 4 — each field above is adjustable with a slider.
  2. HHI is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is HHI (Market Concentration) calculated?
The HHI (Market Concentration) calculator computes HHI from share 1, share 2, share 3, share 4. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the HHI (Market Concentration) calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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