What is trial-to-paid conversion?
Trial-to-paid conversion rate is the share of free-trial users who become paying customers. In a product-led model it is the hinge metric, the point where product experience turns into revenue.
It is distinct from free-to-paid conversion. A trial is time-limited and signals intent; freemium is open-ended. The two convert at very different rates and should never share a benchmark.
The formula.
Trial-to-paid conversion rate = (paid conversions divided by trials started) times 100. Count a cohort of trials and the conversions from that same cohort, so the timing lines up.
To plan, invert it. Trials needed equals your target paying customers divided by the rate, which sizes the top of the funnel you have to fill.
A worked example.
Of 100 trials started, 18 convert to paid. The rate is 18 divided by 100, times 100, which is 18%. To land 50 paying customers at that rate, you would need about 280 trials.
What is a good trial-to-paid conversion rate?
It depends almost entirely on the trial model, so a single benchmark misleads. Opt-in trials that ask for no credit card convert lower, often in the teens, because they attract curious users. Opt-out trials that require a card convert much higher, sometimes 40 to 60%, because they pre-qualify intent.
The rate is downstream of activation. Users who reach the value milestone convert far better, which is why the activation rate is the lever to pull first.
How to improve it.
Get users to value faster, time the conversion prompt to the moment they feel it, and remove friction at the point of upgrade. The trial exists to prove value, so the product has to deliver it inside the window.
Conversion also depends on who enters the trial. See how we fill the funnel with qualified trials.