Closed Funnel Conversion Calculator

How to use Closed Funnel Conversion Calculator

Each step divides its count by the preceding stage; overall conversion divides by the first count. Counts must refer to the same population and observation window and cannot increase.

1. Enter ordered stage counts.
2. Choose the stated convention and check the units and supported model.
3. Calculate, inspect the result, then copy or download it.

Good to know

• 2–30 nonnegative whole counts up to1e12, nonincreasing. Zero denominators remain explicitly not defined. No analytics connection, attribution or causal lift claim.
• Runs locally. Text/JSON fields are capped at30,000 characters; stricter page-specific and numeric-string limits also apply. Numeric inputs are bounded to magnitude1e15 and nonzero magnitude at least1e-100 unless an exact-string mode states otherwise. Approximate summaries use12 significant digits; CSV numeric cells retain the complete stored value and potentially formula-like string cells gain a protective apostrophe; unsupported, non-finite or detected underflow states return an error.
• Educational user-assumption arithmetic only. No live prices, laws, tax rules, quotes or financial advice.