Data
Does a 5-star rating hurt conversion? What 1,735 Google profiles show
A 5-star rating does not hurt conversion by itself, but a perfect score built on a handful of reviews is weaker proof than a 4.7 to 4.9 backed by volume, and shoppers read it that way. The best known research on the question, from the Spiegel Research Center at Northwestern University, found that purchase likelihood peaked for ratings between 4.0 and 4.7 and declined as ratings approached 5.0. Our own measurement of 1,735 Google Business Profiles on 2026-09-18 explains the instinct: the typical profile shows 4.9, and a profile that keeps collecting reviews meets its first non-five-star review early, at review number 9 in the median case.
So the useful question is not whether 5.0 is bad. It is what a real, healthy rating looks like next to yours, and what a visitor learns from the gap. We have no sales figures from our customers’ websites, so the conversion claim here belongs to the Spiegel study, which looked at product reviews in retail. What we can add is the market a visitor compares you with, the part those studies leave out.
Where real businesses land on the star scale
| Displayed rating | Profiles with 25+ reviews | Share | Share among 100+ reviews | Median review count |
|---|---|---|---|---|
| 5.0 | 610 | 35.2% | 24.5% | 64.5 |
| 4.8 to 4.9 | 590 | 34.0% | 37.2% | 95.5 |
| 4.5 to 4.7 | 343 | 19.8% | 24.3% | 101 |
| 4.0 to 4.4 | 147 | 8.5% | 11.7% | 117 |
| Below 4.0 | 45 | 2.6% | 2.2% | 83 |
88.9% of these profiles show 4.5 or more, and the median is 4.9. For a visitor, the star scale is not one to five. It is 4.5 to 5.0, and everything below that reads as a warning. A 4.4 sounds respectable in the abstract, yet here it sits in the bottom 11% of the peer group. A 4.7 is below the median, but one profile in five with 25 or more reviews is in the same band.
Look at the last column. The median profile showing 5.0 has 64.5 reviews, while the median profile showing 4.5 to 4.7 has 101. As profiles grow, the 5.0 share shrinks from 35.2% to 24.5% and the middle bands grow. High scores are partly a property of smaller profiles, which is the pattern shoppers learn to discount.
Nearly half of the 5.0 scores are not perfect
A displayed 5.0 hides two very different profiles. Of the 610 profiles with 25 or more reviews that show 5.0, only 338 contain nothing but five stars. The other 272 have an average of 4.95 or higher and round up. Among profiles with 100 or more reviews the split is starker: 188 show 5.0 and just 56 of them are perfect.
The rounding explains why. One one-star review needs 79 five-star reviews next to it before the average climbs back to 4.95 and the displayed score returns to 5.0. One four-star review needs 19. So a 5.0 on a profile with 300 reviews almost always has critical reviews inside it, and the visitor who scrolls will find them. A 5.0 on 12 reviews is usually something else: a profile that has not met its first unhappy customer yet.
That is the reasonable core of the “too good to be true” reaction. Visitors are not punishing excellence. They are reading a perfect score as a small sample, and on young profiles they are mostly right.
What a 4.7 is made of
To make the bands concrete, here is the star mix behind each displayed score, pooled across all profiles with 25 or more reviews that show it. The median profile in each row has between 88 and 104 reviews.
| Displayed rating | Profiles | 5 stars | 4 stars | 3 stars | 2 stars | 1 star |
|---|---|---|---|---|---|---|
| 4.9 | 369 | 94.7% | 3.5% | 0.5% | 0.2% | 1.1% |
| 4.8 | 221 | 90.0% | 6.0% | 1.1% | 0.5% | 2.4% |
| 4.7 | 162 | 84.2% | 8.9% | 2.1% | 0.9% | 3.9% |
| 4.6 | 103 | 81.1% | 10.2% | 2.4% | 1.2% | 5.2% |
| 4.5 | 78 | 72.7% | 16.0% | 4.8% | 1.6% | 4.8% |
A 4.7 is a profile where 84 reviews in 100 are five stars, about 9 are fours, and roughly one in 25 is a one-star. The middle of the scale barely exists: twos and threes together are 3.0%. In plain words, a 4.7 says that almost everyone was happy and a few people had a bad experience and said so. The median 4.7 profile has a one-star share of 4.6%, close to the 3.8% one-star share across all Google reviews in our database.
The arithmetic from the other side is just as simple. To display 4.7 with a single one-star review on the profile, you need at least 11 five-star reviews around it. That is high, visibly real, and inside the 4.0 to 4.7 range where the Spiegel data found purchase likelihood at its highest.
The 4.5 row shows a different shape. It is not a 4.7 with more one-stars. It has far more fours, 16.0% against 8.9%, which is what a business with many satisfied but unexcited customers looks like. Both profiles land in the same visible band, for very different reasons.
The first non-five-star review comes early
Perfect streaks are short. We took the 1,207 profiles with 50 to 998 reviews and sorted each profile’s reviews by date. We left out the few profiles with 999 or more, because for those we cannot be certain the import reaches the very first review.
- 1,049 of the 1,207 profiles, 86.9%, have at least one review below five stars.
- Among them, the median first non-five-star review arrived as review number 9. A quarter got it within the first 3 reviews, and three quarters within the first 29.
- In calendar time, the median first non-five-star review came 281 days after the profile’s first review.
- The first one-star review, for the 816 profiles that have one, arrived as review number 24 in the median case. 391 profiles, 32.4%, have no one-star review at all.
For an owner, the lesson is to plan for that moment rather than dread it. If a profile with eight reviews is still at 5.0, that is typical. The next few reviews will very likely include a four, and the score will settle somewhere between 4.7 and 4.9, which is where most of the peer group lives. The volume that follows matters more than the streak before it, which is why we measured separately how many reviews a business needs to look credible.
Owners almost never hide the bad ones
A common response to a first bad review is to hide it wherever possible. Our data says businesses rarely do this. Across the 2,952 accounts with Google reviews connected to JustReview, only 9 currently hide any Google review on their website. 100 of the 26,418 Google reviews rated one to three stars are hidden, which is 0.38%.
That restraint is sensible, because hiding does not touch the number that matters. The rating on Google Maps and in search is calculated by Google from every review on the profile. A website widget that shows 5.0 next to a Google profile that shows 4.7 is a mismatch the visitor can check in one click. Presenting a filtered selection as if it were the complete record is also exactly what the FTC rule on customer reviews targets for businesses selling to US consumers. Rating distributions differ a lot between platforms too, as our online reviews statistics for 2026 show, so the honest comparison is always source by source.
What to do with a perfect 5.0 on a few reviews
- Keep asking every customer. A 5.0 on nine reviews is a starting point, not an asset to protect. The fastest way to look credible is to reach the volume where a 4.8 or 4.9 is normal.
- Show the reviews, not only the score. Names, dates and full text tell a visitor more than a number, especially while the count is small.
- Answer the first critical review in public. It will come, most likely within the next few dozen reviews. A calm reply turns a one-star into proof that someone reads and responds.
- Never filter by stars. Show what the source shows, and let the average on your page match the one on Google.
- Benchmark against your peers. Compare yourself with the four or five businesses next to you on Maps, not with a perfect score.
How we counted
The figures come from read-only aggregate queries against our production database on 2026-09-18. Because a connected Google profile is imported through the owner API, every star rating on it is available to us, not only a five-review sample. To stop chains from skewing the result, only accounts with a single Google profile were counted: 2,925 profiles, 387,688 reviews, our demo account left out. Ratings below 25 reviews swing too much to mean anything, so the rating tables use the 1,735 profiles above that line. The displayed score is the plain average of all star ratings rounded to one decimal, as Maps shows it, and it includes reviews an owner hid on their own site, since Google still shows them.
Limits of this data
This is a snapshot from 2026-09-18 of businesses that chose to connect a Google profile to a review widget, so it over-represents businesses that already care about reviews. It covers Google only. The displayed ratings are computed by us from the imported reviews and can differ slightly from what Maps shows, for reasons we measured in why review counts do not match. We have no conversion data, so nothing in this article claims that any rating lifts sales on your site. The Spiegel findings came from product reviews in retail, not from local business profiles, and we cite them as context, not as our result.
Show the 4.8 together with the reviews behind it
The strongest version of your rating is the one a visitor can verify on the spot: the score, the count and the reviews behind it, on the page where they decide. The JustReview Google reviews widget imports your full profile history through the owner API and shows it on your site, and the rating summary widget aggregates the score across every source you connect. The free plan covers up to 100 reviews from Google and Facebook, and paid plans start at 9 EUR a month. You can compare plans on pricing, or create a free account and see which band of the tables above your own profile falls into.
FAQ
What is a good Google star rating for a business?
Judge it against the businesses you are compared with, not against the whole scale. Among 1,735 single-location Google profiles with at least 25 reviews, measured on 2026-09-18, the median displayed rating was 4.9 and 88.9% of profiles showed 4.5 or higher. In that peer group a 4.7 is below the median but entirely ordinary, while a 4.4 already sits in the bottom 11%. The scale that matters to a visitor is compressed into the top half star.
Does a perfect 5.0 rating look fake?
Not by itself, but it is weak evidence when the review count is small. In our data a 5.0 is common on young profiles because most of them have not met their first unhappy customer yet: on profiles with 50 to 998 reviews, the median first non-five-star review arrived as review number 9. On larger profiles a displayed 5.0 is usually a rounded 4.95 or higher rather than a perfect record. Of the 188 profiles with 100 or more reviews that showed 5.0, only 56 had nothing but five stars.
Should I hide negative reviews to keep a 5.0 on my website?
It does not work and almost nobody does it. Your Google rating is calculated by Google from every review on the profile, so hiding a review on your own site changes nothing on Maps or in search, and a visitor can compare the two in one click. Across 2,952 accounts with Google reviews connected to JustReview, only 9 currently hide any Google review, and 100 of 26,418 Google reviews rated one to three stars are hidden, which is 0.38%.