Inputs
01Funnel volumes, rates, and economics you enter
All math is driven by numbers you type: traffic or spend proxies, stage volumes or conversion rates, average revenue, and margin assumptions. Nothing is scraped from analytics accounts. Garbage-in produces transparent invalid states, not fake health.
What we show
02Funnel math from your inputs
- Input validity
- Current stage rates (visit → lead → opportunity → customer)
- User targets vs current
- Revenue and gross-profit scenarios
- Sensitivity ranges (what changes if rates move)
Grade policy
03No universal health grade on invalid or zero funnels
Overall letter grades are withheld when inputs are zero, incomplete, or produce non-economic funnels (e.g. 0.01% visitor-to-lead with claimed healthy unit economics). Stage-specific guidance replaces a universal "B".
Worked interpretation
04Using scenarios without over-claiming
Example: 10,000 visits, 2% visit→lead, 20% lead→opportunity, 25% opportunity→customer, $12k ACV, 70% gross margin. The calculator shows customers and gross profit under current rates, then what happens if visit→lead rises to 3% with other stages fixed.
- Prefer one bottleneck at a time in sensitivity mode so stakeholders see which stage moves economics most.
- Target rates should be labeled assumptions not “industry standards” unless you source them yourself.
- If inputs are incomplete, fix validity first grades intentionally stay off until the funnel is economically coherent.
Limits
05What this calculator does not do
- Does not connect to ads platforms, CRM, or finance systems.
- Does not prove attribution or multi-touch paths.
- Does not replace cohort LTV models or cash-flow forecasts.
- Does not invent benchmarks when you leave fields blank.