Marketing & Advertising
Free Trial Conversion Calculator
Estimate activated and qualified trial users, successful paid conversions, trial-to-paid rate, new MRR, blended paid CAC, first-month contribution, and first-month break-even customer volume.
Activated trials-
Qualified activated trials-
Upgrade attempts-
Successful paid conversions-
Trial-start to paid conversion-
New monthly recurring revenue-
First-month subscription gross profit-
Acquisition, trial, and sales-assist cost-
Blended cost per paid conversion-
First-month cohort contribution-
Paid customers needed for first-month break-even-
Decision view
Trial cohort survival and first-month economics
Trial cohort survival and first-month economicsA stage-by-stage cohort ribbon exposes activation loss, qualification loss, upgrade intent, payment failure, CAC, and the first-month break-even gap.
Exact scenario comparisonReached activation milestone (%) changes while all other entered assumptions remain constant.
| Reached activation milestone (%) | Activated trials | Qualified activated trials | Upgrade attempts | Successful paid conversions | Trial-start to paid conversion | New monthly recurring revenue | First-month subscription gross profit | Acquisition, trial, and sales-assist cost | Blended cost per paid conversion | First-month cohort contribution | Paid customers needed for first-month break-even |
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How to use Free Trial Conversion Calculator
- Define one complete trial-start cohort and use stage rates measured on that same cohort.
- Enter the collectible monthly price and gross margin rather than booked annual contract value.
- Include acquisition, support, infrastructure, and sales-assist cost before interpreting conversion quality.
Calculator guide
Understanding Free Trial Conversion Calculator
Free-trial performance is a cohort-survival problem, not a signup count. This calculator follows the same starters through activation, paid-use qualification, upgrade intent, and successful payment, then tests whether the resulting MRR supports the full cost of acquiring and serving the cohort.
Detailed calculation process
Detailed free-trial cohort conversion and first-month economics
The default cohort begins with 2,400 trial starts, of which 62% activate, 72% qualify, 44% attempt an upgrade, and 92% complete payment.
General formula: A=T*aQ=A*qU=Q*uP=U*sc=P/TMRR=P*mGP=MRR*gC=S+T*c_t+A*c_aCAC=C/PK=GP-CP_BE=ceil[C/(m*g)] Each rate is conditional on the immediately preceding stage. Only successful payments create MRR; first-month gross profit is then compared with every cohort-level acquisition and service cost.
What each symbol means
Worked substitution with the default inputs
The default cohort converts 18.07% of starts to paid customers, but first-month gross profit does not recover the $56,208 cohort investment.
Worked situations
Practical examples
- The default 2,400 starts yield 1,488 activated trials and 1,071.36 qualified activated trials.
- After upgrade intent and payment success, 433.69 customers convert, producing about $21,250.64 of new MRR.
Better inputs
Useful tips
- Use an activation event that predicts paid retention rather than a superficial login.
- Separate upgrade attempts from successful payment so checkout friction remains visible.
- Compare cohorts with the same trial length and observation window.
Before relying on the result
Limitations and common mistakes
- The model does not estimate retention after the first paid month, expansion revenue, taxes, or annual-plan cash timing.
- Stage rates are treated as deterministic cohort averages.
- First-month break-even is intentionally stricter than a lifetime-value payback test.
Reference
Key terms
- Activation
- A product behavior that indicates the user reached meaningful initial value.
- Qualified trial
- An activated account that also matches the defined paid-use or fit criteria.
- Paid CAC
- All entered cohort costs divided by successful paid conversions.
Important note
Do not multiply rates measured from different cohort windows. Reconcile every stage to a cohort export before using the result for spend decisions.
Frequently asked questions
Should annual subscriptions use annual price?
Use the monthly-equivalent collectible revenue if the result is intended to represent MRR.
Why is first-month contribution often negative?
Acquisition is paid upfront while subscription gross profit usually arrives over several months.
Can I compare product variants?
Yes, run separate cohorts with consistent activation, qualification, and observation definitions.