How is the average rating calculated?

The average rating is a weighted average: each star level (1 to 5) is multiplied by its vote count, then divided by the total number of votes. The formula is (5·v5 + 4·v4 + 3·v3 + 2·v2 + 1·v1) ÷ (v5+v4+v3+v2+v1).

Can I use this calculator for ratings out of 10 or 100?

No, this tool is designed specifically for 5-star review distributions. It only accepts vote counts for star levels 1 through 5.

What happens if I enter zero votes for all star levels?

The calculator requires at least one vote to compute an average; entering zero for all levels will not produce a valid result.

Does the site show the formula used for the calculation?

Yes, the page includes the average rating formula and explains how weighted averages are computed from the star vote counts.

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Average Rating Calculator

Provided bySimple Calculatorsimplecalculator.co

This Average Rating Calculator focuses on computing overall star ratings from 1–5 vote counts. It shows the weighted-...

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About this tool

What Average Rating Calculator does

The Average Rating Calculator on Simple Calculator helps users determine a weighted average star rating from 1–5 review counts. By entering the number of votes for each star level, the tool instantly outputs the overall average rating and total number of votes. The site provides the underlying formula and explanations about how weighted averages work, making it useful for summarizing product, app, or service reviews into a single score out of 5.

Step by step

How to use the Simple Calculator Average Rating Calculator

1
Enter the number of 5-star votes in the 5★ field
2
Enter the number of 4-star votes in the 4★ field
3
Enter the number of 3-star votes in the 3★ field
4
Enter the number of 2-star votes in the 2★ field
5
Enter the number of 1-star votes in the 1★ field

Is it right for you

Best for

Ideal for product managers, app developers, or anyone needing to quickly compute a weighted average star rating from review counts without manual calculation.

Limitations

Designed specifically for 1–5 star rating distributions
No option to input ratings on other scales
Results are estimates based on the entered vote counts

Questions

Average Rating Calculator FAQ

How is the average rating calculated?: The average rating is a weighted average: each star level (1 to 5) is multiplied by its vote count, then divided by the total number of votes. The formula is (5·v5 + 4·v4 + 3·v3 + 2·v2 + 1·v1) ÷ (v5+v4+v3+v2+v1).
Can I use this calculator for ratings out of 10 or 100?: No, this tool is designed specifically for 5-star review distributions. It only accepts vote counts for star levels 1 through 5.
What happens if I enter zero votes for all star levels?: The calculator requires at least one vote to compute an average; entering zero for all levels will not produce a valid result.
Does the site show the formula used for the calculation?: Yes, the page includes the average rating formula and explains how weighted averages are computed from the star vote counts.

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