5 Best Free Online HHI Calculator Websites

Here is a list of best free online HHI calculator websites. HHI or Herfindahl-Hirschman Index is a metric that helps users measure the concentration of market players within an industry. A high HHI concentration means only a few large players have control over an industry. On the other hand, a low HHI value indicates there are multiple strong players within an industry and giving healthy competition to each other. HHI is also used by regulatory bodies to assess the impact of mergers and acquisitions of companies of a common sector as they can lead to high concentration and lower competition. If you also want to calculate the HHI value of an industry consisting of multiple companies, then check out these online HHI calculator websites.

Through these websites, users can calculate the HHI values of an industry. To do that, they use the market share of multiple companies. Some of these websites also explain HHI to users and highlight the calculation formulas and steps. Most of these websites also highlight the meaning of the obtained HHI value (HHI up to 1500 indicates low concentration, 1500 to 2500 HHI value means moderate concentration and an HHI value of more than 2500 indicates high concentration). To help new users, I have included the necessary HHI calculation steps in the description of each website. Go through the list to learn more about these websites.

My Favorite Online HHI Calculator Website:

omnicalculator.com is my favorite website as it explains HHI and highlights the meaning of the obtained HHI value. Plus, it shows the HHI calculation process.

You can also check out lists of best free Online Market Cap Calculator, Online Capital Gains Yield Calculator, and Online Spintax Tool websites.

Comparison Table:

Features/Website Names	Provides meaning of obtained HHI value	Shows Calculation Formula	Explains HHI
omnicalculator.com	✓	✓	✓
goodcalculators.com	✓	✓	✓
planetcalc.com	✓	x	x
jistor.com	✓	x	x
a1calculator.com	✓	x	x

omnicalculator.com

omnicalculator.com is a free online HHI calculator website. Using this website, users can find out the HHI value that helps users determine the market concentration of a specific industry. To do that, it uses the market share of multiple companies in a specific industry. It can take the market share of up to 15 companies into account to calculate the HHI value. It also explains HHI and highlights the meaning of the obtained HHI value (high concentration, moderate concentration, or low concentration). This website also explains the calculation of HHI with an example. Plus, the HHI calculation formula is also provided. Now, follow the below steps.

How to calculate HHI online using omnicalculator.com:

Visit this website and access the HHI calculator.
After that, enter the market share of multiple companies, until the combined market share reaches 100 percent.
Next, view the calculated HHI value and its meaning.

Additional Features:

This website offers multiple finance calculators like Business Budget, Burndown Chart, Bradford Factor, Additional Funds, Break-Even, CPM, CTR, and more.

Final Thoughts:

It is one of the best free online HHI calculator websites that calculates HHI and provides the meaning of the obtained HHI value.

Pros	Cons
Provides meaning of the obtained HHI value
Explain HHI and show the calculation process
Lists use of HHI Index

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goodcalculators.com

goodcalculators.com is another free online HHI calculator website. This calculator allows users to find the Herfindahl-Hirschman Index of an industry to determine the market concentration level within a certain industry. To do that, it uses the names and market share of multiple companies in a specific industry. Based on the provided values, it generates an HHI value and HHI classification (low, moderate, or high concentration). This website also explains HHI and shows the HHI calculation formula. Now, follow the below steps.

How to calculate HHI online using goodcalculators.com:

Visit this website and access the HHI Calculator.
After that, enter the names and market share of multiple companies till their combined market share reaches 100 percent market share.
Next, click on the Calculate HHI button.
Finally, view the HHI value and its meaning.

Additional Features:

This website offers multiple online tools like Overtime Calculator, VA Disability Calculator, Stock Calculator, Pay Rise Calculator, ACFT Calculator, Water Intake Calculator, and more.

Final Thoughts:

It is another good online HHI calculator website that helps users find out the HHI value to determine the market concentration within an industry.

Pros	Cons
Provides meaning of the obtained HHI value
Shows HHI calculation formula
Explains HHI

Home Page

planetcalc.com

planetcalc.com is another free online HHI calculator website. This website offers a simple HHI calculator that helps users calculate the HHI by company and HHI by country. By default, it shows a list of top 15 manufacturers based on their market share. However, users can enter new company names, country of origin, and market share values to calculate HHI within a specific industry. It also explains the meaning of various HHI values. Now, follow the below steps.

How to calculate HHI online using planetcalc.com:

Visit this website using the given link.
After that, enter company names, country of origin, and market share of multiple companies.
Next, view the calculated HHI by company and HHI by country values.

Additional Features:

This website offers similar tools calculators like petroleum product density, mathematical competition task, cross product, gas concentration, etc.

Final Thoughts:

It is another good online HHI calculator website that helps users calculate HHI value by company and country.

Pros	Cons
Can calculate HHI value by company and country
Shows the meaning of different HHI values

Home Page

jistor.com

jistor.com is another free online HHI calculator website. This website offers a simple and effective online HHI calculator. This calculator can consider the market share of multiple companies to calculate the Herfindahl-Hirschman Index value. It also shows the meaning of the obtained HHI values like moderate market concentration, low market concentration, or high market concentration. However, this website doesn’t explain HHI nor does it show the calculation process. Now, follow the below steps.

How to calculate HHI online using jistor.com:

Visit this website using the given link.
After that, enter the market share of multiple firms till their sum reaches 100 percent.
Now, view the calculated HHI value and its meaning in terms of market concentration.

Final Thoughts:

It is an easy-to-use and distraction-free online HHI calculator website that allows users to quickly find out the HHI value of an industry.

Pros	Cons
Calculates HHI and shows the meaning of the obtained HHI value

Home Page

a1calculator.com

a1calculator.com is the last free online HHI calculator website. Through this website, users can calculate the HHI value of a specific industry to check the market concentration of a specific industry. To perform the HHI calculation, it uses the market share of companies in a common industry. It can consider the market share of up to 15 companies to find out HHI value. It also highlights the meaning of the obtained HHU value (low, medium, and high concentration). However, it doesn’t offer any information related to HHI calculations. Now, follow the below steps.

How to calculate HHI online using a1calculator.com:

Launch this website and access the HHI calculator.
After that, enter the market share of up to 15 companies.
Make sure that the sum of all market share of all companies reaches 100 percent.
Finally, view the calculated HHI values and their meaning.

Additional Features:

This website has online calculators like Burndown Chart, Business Budget, Business Loan, CTR, Absence Percentage, Bounce Rate, and more.

Final Thoughts:

It is another straightforward online HHI calculator website that anyone can use to calculate the HHI of an industry.

Pros	Cons
Calculates HHI and shows the meaning of the obtained HHI value	Lacks information related to HHI calculation

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Frequently Asked Questions

What is the HHI between 1500 and 2500?

An HHI between 1500 and 2500 indicates a moderately concentrated market. This means that there are a few dominant firms in the industry, but there is also some competition from smaller players.

What is the HHI calculator?

An HHI calculator is a tool that helps you easily calculate the Herfindahl-Hirschman Index (HHI) for a specific market. This index, as you know, measures the level of market concentration, indicating how much control a few large players have within an industry.

What does an HHI score of 10000 suggest?

What is the difference between HHI and concentration ratio?

HHI Squares the market share of each firm in the industry and sums them up. This means larger firms' shares have a bigger impact on the score. On the other hand, Concentration Ratio adds up the market shares of a specific number of the largest firms in the industry (e.g., CR4, CR8, CR10). Common options are CR4 and CR8.

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