Free Tool

Review Score Recovery Calculator: 5-stars to cancel a 1-star

Just got a 1-star? Calculate exactly how many 5-star reviews you need to recover your TrustScore using the actual Bayesian formula. Free, no signup.
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5x more reviews
+300k reviews collected
1-click setup

Just got a 1-star? Find out exactly how many 5-star reviews you need to recover, based on Trustpilot's Bayesian-weighted formula.

Discover other free tools to boost your trust on your Shopify website

Starter
0-250 orders /mo
+0.15€ per extra order
59€
per month
Pro plan includes:
WhatsApp, SMS, Email
Basic AI Analysis
Trustpilot Auto-Matching Reviews
Custom branding
Slack & discord notifications
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Growth
250-2500 orders /mo
+0.10€ per extra order
119€
per month
⃪ All Starter features
Upsell automation
AI Analysis & insights
Automatic review reminder
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Unlimited
Unlimited orders /mo
299€
per month
⃪ All growth features +
Dedicated Success Manager
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How it Works

See exactly what it takes to recover

Enter your current Trustpilot TrustScore, your total review count, the number of new 1-star reviews you just received, and your target score. The calculator returns the exact number of 5-star reviews needed to recover, plus a milestone schedule (25%, 50%, 75%, 100% recovery).

Enter your current state

Your current TrustScore (from your Trustpilot profile), total review count, and how many new 1-star reviews you've just received. Be honest — this is for your planning, not a public scorecard.

Set your target

Default is to recover to your starting score. You can also set a higher target if you want to overshoot, or a lower one if you're willing to settle for a partial recovery.

Read the recovery plan

The calculator outputs the exact number of 5-stars needed plus milestone TrustScores at 25%, 50%, 75%, and 100% of recovery. Use this to set realistic timelines and review-collection targets for your team.

FAQ

Your questions, answered.

How many 5-star reviews does it take to cancel out a 1-star review?
Mathematically, it depends on your starting volume. From a 4.5 average with 100 reviews, you need ~11 five-stars to recover from a single new 1-star. From 4.5 with 500 reviews, ~3 five-stars. From 4.5 with 2000 reviews, ~1 five-star. The bigger your review base, the less impact any single review has — which is why volume matters more than perfection.
Why does the math change with my review volume?
Trustpilot's TrustScore uses Bayesian smoothing. With a small base, each new review moves the score significantly. With a large base, individual reviews barely register. This is why brands with 1000+ reviews stop worrying about individual 1-stars and brands with 50 reviews live in fear of them.
How fast can I realistically recover?
For most stores, 5-star review collection rates are 1-5% of orders (passive) or 8-15% (active). At 1000 orders/month with a 12% active rate, you collect ~120 new 5-stars/month. So recovering from a 1-star drop on a 500-review base (needing ~3-5 new 5-stars) takes 1-2 days. Recovering from a 5-1-star spike on a 50-review base (needing 50+ new 5-stars) takes 4-8 weeks.
What if the bad reviews are fake?
Flag them first using our <a href="/blog/how-to-remove-fake-trustpilot-review">step-by-step removal guide</a>. Trustpilot removes about 65% of validly-flagged reviews within 5-14 days. Combined with active collection of new positive reviews, you can recover faster than just collecting alone.