Google Review Calculator

Google calculates your review score by averaging all ratings published for your business. The total number of star points is divided by the number of reviews. For example, 40 five-star reviews and 10 one-star reviews produce an average rating of 4.2.

The number depends on your current average, total review count, and target rating. For example, a business with an exact average of 4.2 across 50 reviews needs 30 additional five-star reviews to reach an average of 4.5, assuming its existing reviews stay unchanged.

Search for your business on Google Search or Google Maps. Your Business Profile shows your star rating and total review count. If you manage multiple locations, use the rating and review count from the same location for each calculation.

The result is an estimate based on the values you enter. Your displayed Google rating is rounded and may differ from your underlying average. The calculation also assumes that every new review is 5 stars and that your existing reviews remain unchanged.

There is no fixed number for every business. It depends on the average you want to restore. If your average was exactly 4.5 before one new one-star review, seven additional five-star reviews would restore that average, assuming no other reviews change or arrive.

If an existing review is below 5 stars, adding five-star reviews can bring your exact average closer to 5.0, but cannot make it equal 5.0. A rounded rating displayed on Google is different from an exact mathematical average.

New reviews can change your underlying average without changing the rounded rating displayed on Google. Score updates can also take time. Google says an updated review score may take up to two weeks after a new review is published.

Yes. Jotform’s Google Review Calculator is free to use. Enter your current Google rating, review count, and target rating to estimate how many additional five-star reviews you need.

Share a direct review link with customers using the Google Review Link Generator, and display customer feedback on your website with the Google Reviews Widget. Invite honest feedback without requesting a specific star rating or offering incentives.