How to Use the Google Rating Calculator
Enter three numbers from your Google Business Profile: your current star rating, your total number of reviews and the rating you want to reach. The result updates as you type. You will see how many 1-star reviews would need to be removed, what your new rating would be, what removal would cost at $399 per review, and how many new 5-star reviews would get you to the same place without removing anything.
The step table shows your rating after each group of removals, so you can see where the biggest jumps happen and decide how far you actually need to go.
How Google Calculates Your Star Rating
Your Google rating is a simple average. Google adds up every star from every review and divides by the number of reviews. A profile with 100 reviews and a 4.2 rating has about 420 stars in total. Google then shows that number rounded to one decimal place, which is why two businesses with "4.2" can be slightly apart underneath.
Because it is an average, each review's effect depends on how many reviews you already have. On a profile with 20 reviews, one 1-star review can pull you down by a lot. On a profile with 500 reviews, the same review barely moves the number. That is also why removing a few unfair 1-star reviews from a small profile can make such a visible difference.
The Formula Behind the Calculator
Removing a 1-star review takes away one star from the total and one review from the count. After removing k reviews, your new rating is:
New rating = (current rating × total reviews − k) ÷ (total reviews − k)
The calculator finds the smallest k that lifts the result to your target. For the alternative, adding n new 5-star reviews gives (total stars + 5n) ÷ (total reviews + n), and the calculator finds the smallest n that reaches the target.
Worked example
A dental practice has a 4.2 rating from 100 reviews and wants 4.5. Its total is 420 stars. Removing 9 one-star reviews leaves 411 stars across 91 reviews, which is 4.52. To reach the same 4.5 with new reviews alone, it would need 60 new 5-star reviews. Removal costs 9 × $399 = $3,591, but only if those 9 reviews actually break Google policy.
Why a Small Rating Change Matters
Customers compare businesses side by side in Google Maps, and the star rating is one of the first things they see next to your name. Many people filter search results by rating or skip anything below a number they trust. A move from 4.2 to 4.5 can be the difference between being shortlisted and being scrolled past, especially in competitive local categories like dentists, contractors, restaurants and law firms.
The rating also shapes how people read the rest of your profile. A strong average makes a single bad review look like an outlier. A weak average makes every negative comment look like a pattern.
Removing Reviews vs Getting New Ones
These two paths work best together, not as either-or choices.
- Removal is right for reviews that break Google policy: fake reviews, competitor attacks, former employees, off-topic rants and harassment. Those reviews should not be on your profile at all. Check any review for free with our Google review removal eligibility checker.
- New reviews are the right fix for genuine but disappointing feedback. Ask happy customers at the right moment, make it easy with a direct review link, and reply to every review politely.
If the calculator says you need 60 new reviews but only a handful of removals, and those reviews are fake, removal is the faster route. If the negative reviews are real, focus on new reviews and better service.
Honest Ways to Raise Your Google Rating
- Ask every satisfied customer for a review, by text or email, soon after the visit.
- Reply to negative reviews calmly, fix the issue where you can, and invite the customer back.
- Report reviews that clearly break Google policy, and get help when reporting alone does not work.
- Never buy reviews or post fake ones. Google can remove them in bulk and may restrict your profile.
- Track your rating monthly so you catch sudden drops, which are often a sign of spam attacks.
Get Unfair Reviews Removed
BGR Reputation removes Google reviews that break policy through Google's official process. You pay a flat $399 per review only after it is removed, with no upfront fee and no access to your account needed. Most removals happen within 1 to 7 days. See how it works or read the FAQ.
Frequently Asked Questions
How does Google calculate a business star rating?
It is the average of all star ratings on the profile: add up every star and divide by the number of reviews. Google shows that average rounded to one decimal place.
Why does the calculator assume removed reviews are 1-star?
Most reviews that get removed are 1-star. Removing a 1-star review raises your average the most, so the result shows the smallest number of removals needed. Removing 2-star reviews would take a few more.
Is my current rating exact?
Google shows one decimal, so a 4.2 could really be anywhere from 4.15 to 4.249. For a close answer, treat the result as an estimate within one or two reviews.
Why can't I reach 5.0 by removing reviews?
A 5.0 average means every review is 5 stars. Unless all your other reviews are already 5 stars, removing negative reviews alone cannot get there.
Can any negative review be removed?
No. Only reviews that break Google's content policies can be removed, such as fake, spam, conflict-of-interest, off-topic or abusive reviews. Use our free eligibility checker to test a specific review.
How much does it cost to remove the reviews the calculator shows?
BGR Reputation charges a flat $399 per review, only after the review is removed. The calculator multiplies the number of removals by $399.
What is the 5-star alternative?
It shows how many new 5-star reviews you would need to reach the same target without removing anything. Comparing both numbers helps you choose the faster, fairer path.