Map your funnel stage by stage. The calculator identifies your biggest drop — the bottleneck where work has the most leverage.
Use the names that match your product. Edit defaults — the math works for any number of stages.
Last 30-90 days of actual usage data. Don't aspirate; this calc is for diagnosing reality.
The biggest single drop. That's where focused work has highest leverage.
Visitor → signup: 1-5%. Signup → activation: 30-50%. Activation → paying: 5-25%. Paying → 90-day retained: 70-90%.
A funnel is the sequence of stages a user moves through: visitor → signup → activation → conversion → retention. Each stage has a conversion rate from the previous one.
This calculator surfaces step conversion rates AND the biggest single drop — the one stage where focused work has the most leverage.
Founders often try to optimize the wrong stage. If your visitor-to-signup is 8% and your trial-to-paid is 5%, doubling visitor-to-signup feels great but actually moves total conversion less than fixing trial-to-paid.
The simplest rule: find the lowest step conversion rate, fix it first. The biggest drop is usually the biggest opportunity.
Nautis connects your numbers, fundraising, team and goals in one AI-native workspace — beyond a single calculator.
