Freemium to Paid Conversion Calculator
Free to paid conversion funnel.
Calculate freemium-to-paid conversion rate and resulting revenue from trial-start rate and trial-to-paid conversion at your current funnel.
What this tool does
This calculator models how a freemium user base converts into paying customers. It takes your current free user count, the percentage of those free users who begin a trial, and the percentage of trial users who convert to a paid plan, then calculates two key outputs: your overall free-to-paid conversion rate and the resulting monthly revenue from those conversions. The conversion rate is most sensitive to changes in trial initiation and trial-to-paid conversion percentages. A typical scenario involves a SaaS product measuring funnel performance across its user stages—from free tier to trial entry to paid subscription. The calculator assumes a single paid plan price and does not account for churn, plan downgrades, annual commitments, or variations in user segments. Results illustrate potential revenue under the stated conversion conditions and serve as an educational model for funnel analysis.
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Formula Used
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Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
Freemium-to-paid conversion typically happens in two steps: free user starts a trial (5-15% of free users try paid features), then trial converts to paid (15-40% of trials convert). Overall free-to-paid rate is the product of both rates - usually landing at 1-5% for most products.
50,000 free users × 10% trial starts = 5,000 trials. × 25% trial-to-paid = 1,250 paid users. 2.5% overall conversion rate. At 20/month plan: 25,000 MRR from free base. This is the 'leaky funnel' that most freemium businesses optimize obsessively - 0.5% improvement at this scale = 10k+ additional MRR.
Conversion optimization: improve trial trigger (in-app nudges at value moments), improve trial experience (immediate access to premium, not gated), improve trial-to-paid (extend trial for engaged users, offer discount at expiry, send case studies during trial). Each stage is a separate optimization project with its own metrics.
Run it with sensible defaults
Using free users of 50,000, trial start rate of 10%, trial to paid of 25%, paid plan price monthly of 20, the calculation works out to 2.50%. The defaults are meant as a starting point, not a recommendation.
The levers in this calculation
The inputs — Free Users, Trial Start Rate %, Trial to Paid %, and Paid Plan Price Monthly — do not pull with equal force. Not every input has equal weight. Adjusting one input at a time toward extreme values shows which ones move the result most.
How the math works
Trial starts = free × trial %. Paid = trials × conversion %. Overall = paid ÷ free. Revenue = paid × price.
What the score tells you
Headline financial numbers — income, savings, debt — each tell part of the story. This calculation stitches several together into a single read you can track over time. The value is in the direction, not the absolute number.
What this doesn't capture
The score is a composite of the inputs you provide. Life context — job security, family obligations, health, housing — doesn't appear in the math but shapes the real picture. Use the number as a prompt, not a verdict.
50,000 × 10% × 25% × ££20 = 2.50%.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
This calculator models the conversion path from free users to paid subscribers through a sequential trial funnel. It computes trial starts by applying the trial start rate percentage to the total free user base. Paid conversions are then calculated by applying the trial-to-paid conversion percentage to the number of trial starts. The overall conversion rate is derived by dividing total paid conversions by the initial free user count. Monthly revenue is computed by multiplying the number of paid subscribers by the monthly plan price. The model assumes a linear, sequential conversion process and treats all rates as constant. It does not account for churn, seasonal variation, plan mix variation, implementation costs, or payment processing fees.
References
Frequently Asked Questions
What's a good overall conversion?
Trial length impact?
Credit card required for trial?
How to increase trial starts?
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