Trial-to-paid conversion calculator
Free tool · By Utkarsh Dhairya Panwar · Updated
Enter monthly sign-ups, activation rate, the share of activated accounts that pay, and revenue per account. You get your trial-to-paid rate, new paying accounts and monthly revenue, plus a slider that shows the same numbers with only activation changed. It all runs in your browser.
Trial-to-paid is two rates multiplied
Most trial conversion calculators divide paying customers by trials and stop there. That's fine for a board slide. It just hides where the loss is. A trial that never reached first value and a trial that reached it and didn't pay are different problems with different fixes.
So this calculator splits trial-to-paid into two parts: the share of sign-ups that activate (reach your first-value event) and the share of activated accounts that pay. Multiply them and you get the overall rate. Change one and you can see what it's worth on its own.
Run your numbers
The interactive version of this tool runs in your browser on this page; nothing you enter is sent anywhere.
If you don't track activation yet, use your best guess for now. The output then gives you a rough shape, and I wouldn't put it in a forecast.
The maths, step by step
- Activated accounts: Sign-ups per month × activation rate. With 500 sign-ups and a 30 percent activation rate, that's 150 activated accounts.
- Paying accounts: Activated accounts × the share that pay. If 20 percent of those 150 pay, that's 30 new paying accounts a month, an overall trial-to-paid rate of 6 percent.
- Revenue: Paying accounts × monthly revenue per account. Thirty accounts at 50 a month is 1,500 in new monthly revenue, added every month.
- The change: Move activation to 40 percent and hold everything else: 200 activated, 40 paying, 2,000 a month. Over twelve monthly cohorts that gap compounds to 6,000 in monthly revenue, before churn.
Holding the paid share steady is an assumption. Accounts pulled over the line by better onboarding can be less committed than the ones who'd have made it anyway, so the real lift is often smaller. That's why the twelve-month number is a ceiling.
Two funnels with the same rate
Two products each get 500 sign-ups a month and each convert 6 percent of them, 30 paying accounts. On a dashboard they look identical. They aren't.
| Funnel A | Funnel B | |
|---|---|---|
| Activation rate | 15 percent (75 accounts) | 50 percent (250 accounts) |
| Paid share of activated | 40 percent | 12 percent |
| Paying accounts | 30 | 30 |
| Where the loss is | Most trials never reach first value | People reach value and still don't pay |
| Ten points more activation gives | 125 activated, 50 paying | 300 activated, 36 paying |
Funnel A has an onboarding problem. Ten more points of activation adds 20 paying accounts a month, so finding the step where trials stall is the best use of a designer's time. Funnel B gets only 6 more from the same lift. Its trials already find the product; something after that (pricing, the upgrade moment, the value itself) is failing. Raising its paid share from 12 to 20 percent would add the same 20 accounts that onboarding work adds in A.
Put your own numbers in and look at which slider moves the result more. That tells you which half of the funnel to work on before anyone redesigns a screen.
Where to look next
If you're not sure which event should count as activation, start with the guide on choosing an activation metric. If activation is the gap but you don't know where, the onboarding scorecard narrows it to a stage in about five minutes, and the onboarding audit finds the exact step. For one real case of fixing that step, see how CodeAnt doubled trial-to-paid.
Questions people ask
How do you calculate trial-to-paid conversion rate?
Paying customers from a trial cohort divided by the number of trials in that cohort. This calculator also splits it into activation rate × the paid share of activated accounts.
What's the difference between activation rate and trial-to-paid?
Activation rate is the share of sign-ups that reach first value. Trial-to-paid is the share that end up paying. Activation comes first and usually limits the second.
Does a higher activation rate guarantee more revenue?
No. The calculator holds everything else still to show the size of the opportunity. In practice the paid share can move too.
Is any of my data sent anywhere?
No. All the maths runs in your browser and nothing is stored.
Working on this?
Tell me what you're building and where it's stuck: book a 30-minute call, email work@utkarshdesign.com or send a brief.