YYour Agency

Review Impact Report

How Many Reviews to Reach a Target Star Rating, and What It's Worth

Enter a business's review count and rating. This tool shows exactly how many new reviews it takes to reach a target star average, since that number depends on how many reviews they already have, then puts a dollar figure on the climb using the Harvard finding that each star is worth 5 to 9% in revenue.

Client

⚠Heads up: Using the example figure so you still see a result. Enter the real number for accuracy.

The Business's Numbers

Pull the first two from Google in a minute. Pre-filled with examples.

Business name (shown on the report)

Current total Google reviews

Current average star rating

New customers per month

Average value of one new customer

Benchmarks & Assumptions

Cited defaults. Adjust to the plan.

Target star rating

BrightLocal, 2024: 40% of consumers expect at least 4 stars before considering a purchase, and most look for 4.5 or higher.

Average rating of new reviews earned

Happy customers rarely all leave a perfect 5. A 4.8 average is realistic. Lower this and the climb takes more reviews.

New reviews earned per month

The pace the business can realistically collect. Drives the timeline to target.

Revenue lift per full star gained

Harvard Business School (Luca): a one-star increase drives a 5 to 9% revenue lift. 7% is a safe middle, so you can leave it as is unless you have data for this business.

What It Takes and What It's Worth

Status

New reviews needed to reach the target

Months at current pace

Rating gain

Revenue lift / month

Revenue lift / year

The bottom line

$0 / year

On target Nearly there Falling behind Critical gap

Methodology and sources

How it works

Reviews needed: the tool calculates how many new reviews, at the quality you set, would raise the average to the target. The larger the existing review base, the more it takes to move, which is why the number is rarely what people guess.
Time to target: the reviews needed spread across the monthly pace the business can realistically collect.
Revenue impact: the rating gain applied to the business's monthly revenue, using the published per-star revenue effect cited below.

Sources

Revenue per star: Michael Luca, Harvard Business School, "Reviews, Reputation, and Revenue: The Case of Yelp.com". A one-star increase drives a 5 to 9% revenue lift.
Rating expectations: BrightLocal Local Consumer Review Survey, 2024.

These are directional estimates, not guarantees. The link between higher ratings and more revenue is well documented, and the widely cited 5 to 9% per-star figure comes from a Harvard Business School study. The 7% default sits in the middle of that range and works as a safe general estimate, so you can leave it as is. Use the business's real numbers wherever you have them.

Estimates based on the numbers entered and the cited research. Actual results vary by business and market.

The business

Google Review Impact Report

Status

Report prepared by

Your Agency

new reviews to climb from 3.9 to 4.5 starsabout 5 months at 12 reviews a month

Reviews today

+0.6

Rating gain

5 mo

Time to target

$6,300

Revenue upside / yr

$525 a month in estimated new revenue by reaching 4.5 stars.

The 4-step plan to get there

Turn on a review request system. Send a one-tap review link by text and email right after every completed job or visit.
Ask while it is fresh. Request the review within 24 hours, when the experience is top of mind. Aim for about 12 new reviews a month.
Respond to every review. Thank the happy ones and calmly answer the rest. It signals you care and lifts buyer trust.
Hold the pace. Keep it up for roughly 5 months to reach the target, then maintain it to protect the rating.

Book a call to turn this into a plan.

Estimates based on the numbers provided and cited research: Harvard Business School (Luca) on revenue per star, and BrightLocal (2024) on rating expectations. Directional guidance, not a guarantee.