Google review calculator · Free
Work out how many five-star reviews you need to reach a target Google rating, or what your rating becomes after new reviews, good or bad. Type in your current rating and review count. No signup.
Google says a place's score is the average of all ratings published on Google for it, and that an updated score can take up to two weeks to appear (Google help). Your profile shows the rating to one decimal place, so the calculator works from that figure; treat the answer as a close estimate, not an exact count.
The maths
Your rating is total stars divided by number of reviews. To lift it to a target, every new five-star review adds five stars and one review. The fewer reviews you have, the faster it moves, in both directions.
| Today | Target | Five-star reviews needed |
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What the stars mean
A near-perfect score with a healthy number of recent reviews reads as trustworthy. A 5.0 from a handful of reviews reads as new, or as friends and family.
Most well-run local businesses settle here. A few critical reviews with calm replies make the rest more believable, not less.
Usually a sign that unhappy customers post and happy ones are never asked. Asking every customer is the quickest fix.
Look for a pattern in the low reviews first. Fix the cause, reply to each one, then ask recent happy customers.
Get there faster
Reviewshake sends an email or text after every visit with one reminder, spaced so Google sees steady velocity, and drafts a reply to every review that comes in. You watch the rating climb on one dashboard.
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Questions
Google describes a place's score as the average of all ratings published on Google for it, on a scale from 1 to 5 stars. Reviews that Google removes or filters do not count, and an updated score can take up to two weeks to show.
It depends on how many reviews you have now. With 50 reviews you need 30 more five-star reviews; with 100 you need 60. The calculator above works it out for your numbers.
Only if every review is five stars. Once you have any lower rating, the average can get very close to 5.0 but never reach it. A 4.8 or 4.9 with many reviews is a better target and reads as more believable.
Less the more reviews you have. A single one-star review takes a 4.8 with 20 reviews down to about 4.6, but a 4.8 with 200 reviews only to about 4.78, which still shows as 4.8. Use the third tab to see your numbers.
Google says an updated score can take up to two weeks to appear. The review may also have been filtered, for example if several arrived at once from new accounts.
Yes. Google encourages businesses to share a review link or QR code. Ask every customer, not only the happy ones, and never offer anything in return.