Free Tool — Star Rating Calculator
How many 5-star reviews to hit your target?
Your Google rating decides who calls before they've read a word about you. Enter your current rating and review count, pick the rating you want, and get the exact number of five-star reviews between you and it — usually fewer than you fear.
The number is the easy part
Knowing you need 20 five-star reviews changes nothing unless the asking becomes a habit. Make it a one-tap link with the free review link & QR code maker, and read how to ask for reviews without being awkward.
Rating is also only half of how Google ranks you in the map pack — the rest is your profile itself. Run the free 13-point Google profile audit to see what else is holding you back, and reply to every review you get — the response generator writes the awkward ones.
Questions
Why does 4.5 stars matter so much?
Two reasons. Google’s "4+ stars" filter and many directory filters cut off below it, so a 4.4 business is invisible to anyone filtering. And customers read 4.5+ as "safe choice" while a low-4 rating triggers reading the bad reviews. Crossing 4.5 changes behaviour more than any other half-star.
How does the maths work?
Your displayed rating is essentially a simple average. The calculator solves for how many new 5-star reviews move that average to your target: count × (target − current) ÷ (5 − target), rounded up. A 3.9 with 40 reviews needs about 22 five-star reviews to reach 4.4 — but only your next 5 to feel visibly different.
Is one bad review really a big deal?
The fewer reviews you have, the more each one moves you — one 1-star on a 10-review profile drops you about 0.4 stars, while on a 200-review profile it barely registers. That is the real lesson of the calculator: volume is armour. The fix for a bad review is fifty good ones.
Can I just buy reviews to get there faster?
Don’t. Bought and incentivised reviews violate Google’s policy; profiles get filtered, reviews get bulk-removed, and the trust you were trying to build evaporates. Asking every real customer on the day of the job gets you there nearly as fast, permanently, and with stories future customers actually believe.