Review velocity calculator

Free · no signup · live math in your browser · by Prospect Audits

Enter your review count, the competitor you're chasing, and how fast they're growing. You get the reviews-per-month you need to catch them in your chosen window — and how many customers you have to ask to get there (typical ask-to-review conversion is 20–30%).

Your current review count Competitor's review count Competitor's new reviews / month (check their newest reviews' dates) Months to catch them Calculate →

How the math works

To catch a competitor who has T reviews and adds V per month within M months, you need (T + V×M − Y) ÷ M reviews per month, where Y is your current count. The killer variable is V — chasing a leader who is still accelerating costs far more than the raw gap suggests.

Why review velocity matters more than review count

Recency is a freshness signal: 50 reviews from the last year typically beat 150 from five years ago. Velocity is also the only review metric you fully control — it responds within weeks to a consistent ask process at checkout, on invoices, and by SMS follow-up.