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Product Market Fit Calculator
Score your PMF using the Sean Ellis survey benchmark.
PMF score
40%
% who'd be very disappointed without you
Strong PMF — Strong PMF — Sean Ellis benchmark cleared. Pour fuel on growth.
Benchmark: 40%+ "very disappointed" = product-market fit (Sean Ellis, 2009).
About this tool
Run the classic Sean Ellis question — "How would you feel if you could no longer use the product?" — enter your survey results, and get your PMF score plus a verdict against the 40% benchmark.
What it does
- •Sean Ellis PMF score (% very disappointed)
- •Pre-PMF / emerging / strong verdict
- •Optional NPS tracking
- •Benchmark-aware guidance
Use cases
- ★Validating early-stage product traction
- ★Deciding when to scale spend
- ★Reporting PMF to investors
FAQ
What is the Sean Ellis PMF test?
Survey active users with: "How would you feel if you could no longer use this product?" If 40%+ answer "very disappointed", you likely have product-market fit.
How many responses do I need?
Aim for at least 30–50 responses from active users (used the product in the last 2 weeks) for the signal to be meaningful.