How many Google reviews do you need?
Fill in your numbers. The math updates as you type.
Your profile
4.5
As shown on Google.
4.8
4.9
Even good businesses get a 4 now and then. 4.9 is a realistic planning number.
Your results
Reaching 4.8 stars
134 new reviews
Averaging 4.9 stars. At 4 a month, that's about 34 months.
What one bad review costs you
One 1-star review would drop you to 4.5. It takes about 9 new reviews averaging 4.9 to undo it.
How the math works
- Your star rating is the average of every review. The calculator solves for where old and new reviews average out to your target.
- Google rounds to one decimal, so a 4.8 shows once the real average hits 4.75.
- Worked example: 4.5 stars with 100 reviews, target 4.8. All 5-star new reviews: 100 more. New reviews averaging 4.9: about 167. A small drop in new-review quality adds a lot of time, so a steady pace matters more than a burst.
- More reviews make your rating harder to move either way. One 1-star review drops a 4.8 business with 20 reviews to 4.6; with 200 reviews it stays at 4.8.
Results are estimates. Your displayed rating is already rounded, so your true starting average could be slightly higher or lower, and Google sometimes filters or removes reviews.
Getting reviews on a steady schedule
Most businesses don't lack happy customers. They lack a system that asks every one of them at the right time. I set that up as part of CRM and automation, and reviews feed directly into your local SEO.