Google rating calculator
Find out how many 5-star reviews it takes to lift your Google rating, from 4.2 to 4.5 or from 4.6 to 4.8, and how long it might take.
- Allows for Google rounding your displayed rating
- Shows every step up to 4.9 at a glance
- Tells you what one bad review really costs
- Free, no sign-up
Your rating and review count are shown next to your business name on Google Maps.
To go from 4.2 to 4.5 ★ you need about
40 more 5-star reviews
Google rounds your displayed rating, so it could take up to 48 with no lower reviews in between.
At 3 new 5-star reviews a week, that’s roughly 14 weeks.
Every 1-star review takes about 4.0 five-star reviews to cancel out at your current rating.
| To show | 5-star reviews needed |
|---|---|
| 4.4 ★ | 21 |
| 4.5 ★ | 40 |
| 4.6 ★ | 68 |
| 4.7 ★ | 112 |
| 4.8 ★ | 192 |
| 4.9 ★ | 377 |
Get those reviews faster
The easiest way to get more 5-star reviews is to ask at the right moment and make it one tap. Start with a free Google review QR code, or put a tap-to-review stand on every table.
Why your rating matters
Most people check a business’s star rating before they visit, and Google uses rating and review count when it ranks local results. A move from 4.2 to 4.5 can be the difference between being picked and being scrolled past.
The quickest way to raise it is a steady stream of new reviews from happy customers. Make it easy: a free Google review link and QR code takes customers straight to the star rating.
Questions
How many 5-star reviews do I need to get a 4.5 rating?
It depends on your current rating and how many reviews you have. For example, a business on 4.2 from 87 reviews needs about 40 more 5-star reviews to show 4.5. Enter your own numbers in the calculator above.
How does Google calculate my rating?
It’s broadly the average of your star ratings, shown rounded to one decimal place. That rounding means you show 4.5 once your average reaches about 4.45. Google may also filter out reviews it considers spam, so treat the result as a close estimate.
How much does one bad review hurt?
At a 4.2 rating, each 1-star review takes about four 5-star reviews to cancel out. The higher your rating, the more 5-star reviews each bad one costs, which is why a steady flow of new reviews matters.
What’s the fastest way to get more Google reviews?
Ask happy customers at the moment they’re happiest (paying or leaving), and make it one tap. A direct review link or QR code skips the searching, and an NFC stand on the table works with a simple tap.