Review Calculator
Enter your current rating, review count and target — we'll tell you exactly how many consecutive 5-star reviews it takes to get there.
Both numbers are on your Google Business Profile. Google shows ratings rounded to one decimal.
(your displayed rating becomes 4.50)
Assumes every new review is 5 stars — real-world mixes need more. The fix isn't a one-off push; it's making the ask effortless every single day.
Frequently asked questions
How is the number calculated?
Your current rating × review count gives your total star sum. We then solve for the smallest number of added 5-star reviews that pushes the new average to your target, and round up to a whole review.
Why does it take so many reviews to move my rating?
Averages are heavy. At 200 reviews, each new one is only 0.5% of the total — so a 3.9 doesn't become a 4.5 with ten good weeks. That's why consistent daily collection beats occasional pushes.
Can I ever reach a perfect 5.0?
Mathematically, no — once you have a single sub-5-star review, the average can approach 5.0 but never reach it. Aim for 4.7+, which is where click-through rates peak.
What's the fastest way to collect the reviews I need?
Ask at the moment of the smile — and make it effortless. An NFC review card at your counter turns "please review us" into a single tap, which is how businesses add reviews daily instead of monthly.
Stop asking. Start tapping.
Tools help you ask better — RATECARDS™ removes the ask entirely. One NFC card at your counter opens your 5-star review box the moment a customer taps their phone. Free worldwide shipping, 90-day growth guarantee.
Shop review cards