How Are Google Reviews Calculated in 2026

Google reviews are calculated as a plain average. Add every rating published on your profile, divide by how many there are, round to one decimal. Google's own documentation describes no weighting by review age, length, or reviewer. When your displayed score doesn't match your math, it's almost always one of three things: reviews Google filtered before they ever published, rounding, or the lag — a new review can take up to two weeks to move the score.

• Google's Business Profile Help defines the review score as the average of all ratings published on Google for that place or business. One sentence, no weighting, no formula beyond the mean.
• A new review can take up to two weeks to change your displayed score, which Google states outright and almost nobody quotes.
• Reviews Google removes for policy violations are never published, so they never enter the average — the ones you can see are the ones being counted.
• The displayed score is rounded to one decimal place, which is why 4.7475 and 4.7525 look two full tenths apart from each other and identical to a business owner counting stars by hand.
• Recency weighting, "quality" weighting, and reviewer-credibility weighting are real signals in Google's local ranking documentation and appear nowhere in its review score documentation. The industry has been quoting one page to explain the other for years.
• The bigger your review count, the less any single review moves your average. A 1-star landing on a 400-review profile at 4.9 doesn't shift the displayed number at all.

Simple Average Formula

Your Google star rating is the sum of every published star rating divided by the number of published ratings. Three reviews at 5, 4 and 3 stars add up to 12, divided by 3, displayed as 4.0. That's the entire calculation. There is no second step Google isn't telling you about.

Overall Rating = (Sum of all star ratings) ÷ (Total number of reviews)

For example, if you have three reviews with star ratings of 5, 4, and 3, the sum is 5+4+3 = 12. Divide that by 3 reviews, and your average is 4.0 stars. Google would display 4.0 as your rating.

One word does all the work in Google's definition, and it's "published." Google's Business Profile Help says the review score is the average of all ratings published on Google for that place or business. A rating that never publishes — because Google's systems removed it under the Maps user-generated content policy — was never in the average to begin with. It isn't subtracted later. It never counted.

Sources: Understand review scores for local places & businesses (Google Business Profile Help) and Prohibited & restricted content (Maps User Generated Content Policy). Both read 2026-08-11.

If you want to calculate a Google review rating yourself, that's the whole method — but the number you get and the number Google shows you can still disagree, and the next section is why.

Why the Displayed Rating Might Differ from Raw Math

Your displayed Google rating can differ from your own arithmetic for four documented or observable reasons: reviews that never published, rounding to one decimal, the update lag of up to two weeks, and a review you forgot you had. It does not differ because Google weights recent or detailed reviews more heavily in the average. Nothing Google publishes says that.

What Google actually documents

Google publishes exactly two sentences about how review scores are calculated, on one Help page. Both are short, both are unambiguous, and neither mentions weighting. Everything else circulating about the star average is inference. Some of it reasonable. Most of it repeated without a source.

Read those four rows together and the confusion on this topic explains itself. Google's guidance on reviews and ranking lives on one page. Google's guidance on how the star score is calculated lives on another. The first page talks about signals; the second page talks about arithmetic. For years the internet has been quoting the first page to explain the second — and until this update, so were we.

What you can verify yourself in ten seconds

Google's Help documentation says nothing about rounding. But open any Business Profile and you'll see a rating carried to exactly one decimal place: 4.3, never 4.28. That's not a documented policy, it's an observable display rule, and it's the most common reason an owner's math looks wrong.

How much a rounding boundary can hide. Take a profile with 400 published ratings. At 1,899 total stars the average is 4.7475 and it displays as 4.7. At 1,901 total stars the average is 4.7525 and it displays as 4.8. Two stars — two — separate a 4.7 from a 4.8 on a profile that size.

The exact midpoint, 1,900 stars and a flat 4.750, is a genuine unknown. Google doesn't document whether it rounds half up, half down, or half to even, and we haven't tested it. Anybody telling you confidently that 4.750 displays as 4.8 is guessing. We'd rather say so.

Widely published, not confirmed by Google

Four mechanics appear on nearly every page ranking for this query: that Google weights recent reviews more heavily, that longer reviews count for more, that Local Guides carry more weight, and that engagement affects the score. We can't find a Google source for any of them applying to the star average.

• Recency weighting. Real in local ranking discussions; absent from Google's review-score documentation. A five-year-old 5-star rating and yesterday's 5-star rating are both, as far as anything Google publishes says, worth five.
• Review length or "quality" weighting. No Google source. A three-word review and a three-paragraph review carry the same star value in the average. The long one may well outrank the short one on your profile. That's display ordering, not arithmetic.
• Reviewer credibility weighting. No Google source for the average. What Google does document is removal of policy-violating content, including fake engagement and rating manipulation — which is a gate on whether a review publishes at all, not a dial on how much it counts once it has.
• Engagement weighting. Helpful votes and owner replies change what readers see first. Nothing Google publishes connects them to the score.
• Bayesian smoothing for low review counts. The current version of this page says Google phased this out around 2017. We can't source that, in either direction, so we're removing the claim rather than repeating it.

None of this means those signals are fiction. Google's own local-ranking guidance says more reviews and better ratings can help you rank. That's a real effect on where you appear. It is not a claim about the number printed next to your stars, and the two have been welded together on page one of this query for so long that the AI summaries now repeat it back as fact.

Recency of Reviews

Recent reviews do not carry more weight in your Google star average. Google's documentation on review scores describes a plain average of published ratings with no age component. Where recency genuinely matters is elsewhere: a steady flow of new reviews affects what shows at the top of your profile, and reviews factor into local ranking.

There's a practical reason the myth survives, and it isn't a conspiracy. Recent reviews feel heavier because they usually are the ones moving the number — not because they're weighted, but because a profile that's collecting reviews now is a profile whose average is actually changing. A business with 40 reviews from 2019 and nothing since has a frozen score. Add six reviews this month and the score moves. That's arithmetic, not favouritism.

Review Quality & Depth

A detailed review and a three-word review are worth the same number of stars in your average. Google publishes nothing that weights reviews by length, writing quality, or depth. What a detailed review buys you is placement. Google surfaces the reviews it judges useful, and that changes what a customer reads first.

Which is worth caring about, just not for the reason the internet gives. Nobody chooses a dentist off a decimal. They choose off the top three reviews on the profile, and a specific review beats a generic one there every time.

Review Engagement & Filtering

Filtering is documented. Engagement isn't. Google's Maps content policy states that violating content will be removed, which means a fake or policy-breaking review is gone before it ever reaches your average. Helpful votes and owner replies are a different thing entirely — they influence which reviews readers see first, and no Google source ties them to your score.

Most "my rating dropped and I didn't get any new reviews" cases are removals. If Google takes down a 1-star review for a policy violation, your average goes up without a single new review being written. Run the same removal on a 5-star and it goes down. Owners notice the number moved and reach for a weighting explanation. The real explanation is that the denominator changed. If you're chasing a specific review, what you can and can't get removed is a narrower question than most owners expect.

"My math says 4.6. Google shows 4.4."

An owner counts the reviews in her inbox: 18 of them — thirteen 5-stars, three 4-stars, two 3-stars. That's 83 stars over 18 reviews, an average of 4.61, which should display as 4.6. Google shows 4.4. Nothing weighted, nothing suppressed. Two things happened.

One review she'd written off is still counting. She flagged a 1-star in July and assumed it was gone. It wasn't — Google won't remove a review for being negative. Google's published set is 19 reviews, not 18: 84 stars over 19 is 4.42, which displays as 4.4. That single review is the entire gap.

Two reviews haven't landed yet. Both 5-stars, both from last week, both inside the two-week window Google documents. When they're counted the profile reads 94 stars over 21 reviews — 4.476, displaying as 4.5.

Her math was fine. Her review count was wrong by one and early by two.

Calculating Google Review Score Yourself

To calculate your Google review score yourself, multiply the number of reviews at each star level by that star value, add the results, and divide by your total review count. Use the count on your public profile, not your notifications. Round the result to one decimal and you have Google's number.

Formula Walkthrough with an Example

Imagine your business has the following spread of Google reviews:

That’s a total of 10 reviews. Let’s calculate the rating:

1. Sum of all ratings = (6 × 5) + (2 × 4) + (1 × 3) + (1 × 1)
   = 30 + 8 + 3 + 1
   = 42
2. Total number of reviews = 10
3. Average rating = 42 ÷ 10 = 4.2

So, in this scenario, your Google rating would display as 4.2 stars out of 5.

For a quick reality check: if you get a new review, you can recalculate to see the impact.

Why one bad review wrecks a new profile and barely scratches an old one. Take a profile with 12 reviews averaging 4.9: eleven 5-stars and one 4-star, 59 stars over 12. One 1-star arrives. Now it's 60 stars over 13, or 4.615, which displays as 4.6. Three tenths gone from a single review.

Now the same 1-star on a profile with 400 reviews averaging 4.9 — 360 fives and 40 fours, 1,960 stars. Add the 1-star: 1,961 over 401 is 4.890. It still displays as 4.9. Nothing visible happened.

That's the honest case for volume, and it's a better argument than the one usually made. Reviews aren't insurance because Google rewards quantity. They're insurance because a large denominator is mathematically difficult to move — by a bad review or a good one. Which is also the trap: past a few hundred reviews, how many reviews it takes to move a score stops being a marketing question and starts being an arithmetic one.

Using Online Calculators for Target Goals

The question behind every Google review calculator is one line of algebra: to raise an average from C to T with N existing reviews, you need N(T − C) ÷ (5 − T) new 5-star reviews. No tool required. The table below is that formula run for the starting points people actually have.

New 5-star reviews needed = N × (T − C) ÷ (5 − T)

where N is your current review count, C your current average, and T your target.

Multiply by your own review count ÷ 100. A profile with 250 reviews multiplies every number below by 2.5.

Read one row and the shape of the problem is obvious: the closer you already are to five stars, the more expensive every tenth becomes. Climbing from 3.5 to 4.0 costs 50 reviews per hundred. Climbing from 4.7 to 4.9 costs 200. The last tenth is always the one that breaks the plan.

One note on the calculators themselves. On 2026-08-11 we checked the Google review calculator ranking near the top of this query at yotpo.com. Under its FAQ heading "How is my Google rating calculated?", the formula renders with the total review count printed where the divisor should be — the fraction is upside down as displayed. It's almost certainly a rendering fault rather than a misunderstanding, and the calculator itself returns sensible numbers. But it is what the page shows a reader, and it is what a language model parsing that page reads. Check the arithmetic on any tool before you plan a quarter around it.

What Are Google Reviews & Where Do They Appear?

Google reviews are the star ratings and written feedback customers leave on a business's Google Business Profile. They appear in four places: the knowledge panel in Search, the Local Pack, Google Maps, and — for businesses with enough of them — seller-rating extensions in Google Ads.

Google then averages these ratings to display an overall star score (e.g., 4.3 out of 5). This star rating system helps others gauge the quality of your business at a glance. It is essentially a consumer-powered grading system of your service or product quality.

These ratings appear in multiple places on Google:

• Google Search Results: When someone searches your business name, they might see a knowledge panel on the right (on desktop) or top (on mobile). This panel shows your star rating and total number of Google reviews. If they search for a category (like “best pizza near me”), your rating also shows up in the Local Pack.
• Google Maps: On the Google Maps app or website, your location’s listing prominently displays your star rating and review count. Many users open Maps to read top reviews before deciding where to go.
• Google Business Profile: If someone clicks your business’s profile (on Search or Maps), they’ll see your star rating at the top along with a breakdown of how many 5-star, 4-star, etc. reviews you have.
• Google Ads: Google also shows star ratings in certain ads (via Seller Ratings extensions) if a business has enough reviews and a high average. For example, an AdWords ad for an online store might show “⭐⭐⭐⭐4.6” to boost credibility.

Additional Considerations & Technical Details

Beyond the core formula and key factors above, there are a few extra technical elements to be aware of. These might not affect everyday businesses dramatically, but they are good to know:

Geographic & Legal Variations

Google operates globally, which means dealing with different laws and norms around reviews. In some regions, consumer protection laws are stricter about fake or defamatory reviews. And the EU in general has been cracking down on misleading reviews as part of broader digital regulations.

Aggregated vs. Structured Data Sources

Sometimes people confuse Google’s own reviews with reviews from elsewhere that show up on Google. Here is the deal:

• Reviews from other sites on your Google listing: Google may showcase “Reviews from the web” on your Business Profile. This can include ratings from Facebook, TripAdvisor, Yelp, etc., pulled in automatically by Google’s crawler.
• Structured data stars: If your website has schema markup for product or service ratings, Google might show those stars in organic search results for your site. Again, totally separate from Google reviews. It is your site’s own review score (like product reviews on your page). Google treats this differently, with its own guidelines (you need legit review markup, etc.).

How Businesses Can Influence Their Google Rating

Now to the part every business owner cares about: What can you do to get (and keep) a high Google star rating? While you can’t (and shouldn’t) directly control what customers say, there are absolutely steps you can take to influence your rating in a positive way:

Encouraging Fresh, High-Quality Reviews

The best way to improve your Google rating is to collect more honest reviews from your real customers. A continuous trickle of new reviews will do more for your rating (and ranking) than a one-time flood (which could even look suspicious). Plus, having a routine of asking ensures you are not scrambling for reviews only when a negative one comes in.

Remember, you have to deliver a 5-star-worthy experience in real life. No amount of strategy can save a business that isn’t actually delivering value to customers.

Responding to Reviews & Maintaining Listing Integrity

Many people don’t realize this, but how you manage your existing reviews can influence your success. Google itself has said owners should respond to reviews.

A simple “Thank you so much for your kind words!” on a 5-star review shows customers (and Google) that you are engaged. For negative reviews, responding is even more crucial – apologize sincerely if appropriate, address the issue, and offer to make it right. Future readers see this and feel more confident in your business. Google likely sees an owner who cares, which can’t hurt your profile’s standing.

Flagging Inappropriate or Fake Reviews

Every now and then, you might get a review that is clearly spam, a competitor attack, or just violates Google’s policies. You can do something about those. Google allows business owners to flag reviews that are inappropriate.

Google won’t remove a review just because it is negative or you disagree with it. But if it is fake, off-topic, contains profanity, harassment, or conflicts of interest (like your ex-employee reviewing you), those are grounds for removal. If someone is also promoting another business in your reviews or posting malware links, flag it!

Impact of Ratings on Visibility & Trust

We have alluded to it throughout, but let’s make it explicit. Google star ratings have a significant impact on both your online visibility and consumers’ trust in your business. Here is how:

Influence on Click-Through Rates and Consumer Trust

Imagine two similar businesses appear in a Google search – one has a 4.6 rating with 120 reviews, and the other has a 3.8 rating with 20 reviews. Which one are you clicking first? Probably the 4.6, right? High ratings and solid review counts attract clicks. They act as social proof that your business is reputable.

Role in Local SEO and Google Business Rankings

Now, here is where the SEO nerd in me comes out. How do reviews affect your ranking on Google, especially in local search (Maps and the Local Pack)? Google has confirmed that reviews do factor into local ranking. In local SEO, Google considers relevance, distance, and prominence.

Reviews affect where you appear. They do not affect the average differently because of it. Google's local-ranking guidance says more reviews and positive ratings can help your ranking — that's a placement effect, and it's the page most of the myths on this topic were quietly borrowed from.

If you are curious about more local SEO strategies, check out our guide on How to Rank in Google Maps: The Ultimate Local SEO Playbook.