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How many 5-star reviews do you need?

Enter your current rating, review count and target. Get the exact number of 5-star reviews it takes, and what one bad review really costs you.

1.0 to 5.0

All reviews, not just recent

The rating you want

Quick target:

Enter your numbers

Fill in your current rating, how many reviews you have, and the rating you want to reach. Results update as you type. Nothing is sent anywhere.

How this is calculated

Plain arithmetic on your true average. No estimates, no data collected.

  • Reviews needed = (current reviews × (target − current rating)) ÷ (new review average − target), rounded up.
  • We target the true average. Platforms round what they display (usually to one decimal), so reaching the true target guarantees the displayed rating shows it too.
  • Your displayed rating is already rounded, so your real starting point may be up to 0.05 higher or lower. Treat the answer as a close guide.

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