Review rating calculator
How many 5-star reviews it takes to reach the rating you want, and what one more 1-star review would do.
What the numbers mean
The first figure assumes every new review is 5 stars. Real customers leave some 4-star reviews too, so plan for more. The quickest honest route is to ask every customer on the day of their visit: most happy customers never review unless asked.
Need the link to send them? Use the Google review link and QR code generator.
Questions
How is the number worked out?
A rating is the average of all star ratings. To lift an average of R across N reviews to a target T with 5-star reviews, you need N × (T − R) ÷ (5 − T) of them, rounded up.
Why is the number so high?
Each new review moves the average less as the total grows, and the closer the target is to 5, the less each 5-star review adds. Going from 4.6 to 4.8 takes as many reviews as you already have.
Does Google show the exact average?
Google shows the rating rounded to one decimal place, so a 4.44 and a 4.36 both show as 4.4. The calculator works from the number you enter, so the real figure can be a little lower or higher.
Is it faster to get bad reviews removed?
Often, yes. Removing a 1-star review moves the average more than adding a 5-star one. But only reviews that break the platform’s rules can be removed, such as fake, off-topic or abusive ones.
Reviews that should not be there
A fake or off-topic 1-star review costs you several real 5-star ones. Platforms remove reviews that break their rules when the report names the rule. Here is how to report a fake Google review, or run the free scan and we will tell you which of yours qualify.