How Much Does One Bad Review Move Your Google Rating? (Real Examples)
By Angel & Amani, Co-founders of Relevate · Published · Updated
Short answer
It depends almost entirely on how many reviews you have. With 5 reviews, one bad review can cost you most of a star. With 400, it barely moves the number. The bigger risk for most businesses sits in between: a handful of fake reviews pulling you just under 4 stars, the line where 68% of customers stop considering you (BrightLocal, 2026).
The math
Your Google rating is roughly an average: total stars divided by number of reviews, rounded to one decimal. That means:
- Each review’s weight is 1 divided by your review count. One review is 20% of a 5-review profile and under 0.25% of a 422-review profile.
- A 1-star review hurts more than a 2-star one, because it pulls further from your average.
- Removing a review changes both the top and the bottom of the fraction, so small profiles swing hard in both directions.
What it looked like in our own cases
All six are real Relevate cases. Business names are withheld to protect clients.
| Business | Reviews removed | Review count | Rating |
|---|---|---|---|
| Mental health practice, Liberty, MO | 1 | 5 → 4 | 4.2 → 5.0 |
| Child development center, Kansas City, MO | 8 | 27 → 19 | 3.9 → 5.0 |
| Used car dealership, Lincoln, NE | 9 | 100 → 91 | 3.9 → 4.2 |
| Law firm, Lincoln, NE | 22 | 155 → 133 | 4.3 → 4.8 |
| Dental practice | 14 | not shown | 4.7 → 4.9 |
| Mexican restaurant, Lincoln, NE | 2 | 422 → 420 | 4.6 → 4.6 |
Small profiles swing the most. The mental health practice had five reviews and a 4.2 average. One policy-violating 1-star review was doing all of that damage. Once it came down, the practice sat at 5.0.
Crossing the 4-star line matters more than the decimal. The dealership went from 3.9 to 4.2 after 9 fake reviews came down. That’s only three tenths of a star, but it moved the business from below the line 68% of customers use to above it.
Big profiles barely move, and that’s fine. The restaurant had 422 reviews. Removing two fake ones left the rating at 4.6. The point there wasn’t the number; it was getting false accusations off a page every customer reads.
Volume adds up. The law firm needed 22 removals to go from 4.3 to 4.8. No single review was the problem; a wave of them was.
The bar keeps rising
31% of consumers now only use businesses rated 4.5 stars or higher, up from 17% a year earlier (BrightLocal, 2026). A few tenths of a star is the difference between being on that shortlist and not.
What you can and can’t remove
Only reviews that break Google’s policies can be removed, for example fake reviews, reviews from people who were never customers, or off-topic rants. Honest criticism stays up, and the right move there is a calm, specific reply.
FAQ
How much does one 1-star review lower my rating?
It depends on your review count. On a 5-review profile, one 1-star review can drop a perfect 5.0 to 4.2. On a profile with hundreds of reviews, it may not change the displayed rating at all.
How many reviews do I need before one bad review stops hurting?
There’s no exact number, but the more reviews you have, the less any single one moves the average. 47% of consumers won’t use a business with fewer than 20 reviews (BrightLocal, 2026), so 20 is a sensible first target.
Will removing fake reviews always raise my rating?
No. Removing a low-star review raises your average, but on a large profile the change may not show up after rounding. Our restaurant case stayed at 4.6 after two removals.
How long does removal take?
Most eligible cases resolve in 10–12 business days.
Get a free audit and we’ll show you which of your reviews qualify for removal and what your rating could become. Zero upfront; you only pay for reviews that come down.