The Trial‑to‑Paid Conversion Rate is the percentage of users who finish their free trial and become paying customers. Monitoring this metric helps you:
Gauge onboarding quality and product‑market fit
Measure the effectiveness of trial messaging and paywall timing
Optimize marketing spend by focusing on channels that deliver high‑intent trials
1 | How Grow Slash Calculates the Trial‑to‑Paid Conversion Rate
Core formula
Trial‑to‑Paid Conversion Rate = (Number of Trials Converted to Paid ÷ Total Trials) × 100
Grow Slash evaluates each trial individually, mirroring the way platforms such as Stripe handle trial periods:
Unique conversion window – Every user’s trial starts when they sign up and ends on their own trial‑end date.
Real‑time checks – The instant a trial ends, Grow Slash determines whether the user:
✅ Made a successful payment (converted)
❌ Did not pay or cancelled (churned)
Live update – The overall conversion rate refreshes continuously as new trials reach their end, so your dashboard always shows the latest performance.
2 | Examples
2.1 Single‑day view
If 100 trials ended yesterday and 60 of those users converted, the rate for that day is: (60 ÷ 100) × 100 = 60 %
2.2 Merging multiple days
Suppose you look at a three‑day window:
Date | Trials ended | Conversions |
1 May | 40 | 26 |
2 May | 30 | 15 |
3 May | 50 | 32 |
Combined totals: 40 + 30 + 50 = 120 trials, 26 + 15 + 32 = 73 conversions.
Trial‑to‑Paid Conversion Rate for 1–3 May = (73 ÷ 120) × 100 ≈ 60.8 %
Because Grow Slash calculates on each user’s exact trial‑end timestamp, you can select any date range—daily, weekly, monthly—and the platform instantly aggregates the underlying events to give the blended rate.
3 | Key Considerations
Rolling metric – Results update live; choose any time span to evaluate recent campaigns or onboarding tweaks.
Consistent logic – The same individual‑window method applies whether you view a single day or an entire quarter.
Further guidance – For scenario‑specific questions or deeper analytics needs, email metrics@growslash.com and our metrics specialists will be happy to assist.