Lead Capture Conversion Calculator
Punch in your numbers for any lead-capture page. See exactly where visitors drop off — and which single gap is costing you the most.
Your largest measured drop-off
Visits → Starts: lost 1,400 people (2,000 → 600). That's the single biggest gap in the numbers you entered — a sensible place to test the next change.
This flags where visitors are leaving. It doesn't tell you why — that's what user interviews, session replay, and a real change test are for.
How this tool works
Four inputs, four percentages, one drop-off flag. Nothing more, nothing invented. Copy this into your weekly review and watch the same page's numbers move over time — that's the useful comparison.
Worked example
Example: 2,000 visits, 600 starts, 350 completions, 180 opt-ins → 30% start, 58% completion, 51% opt-in, 9% overall. Biggest gap: visits → starts (1,400 people). That says the page itself, not the form, is the current bottleneck.
A matching template
Ready to turn this into an assessment your visitors can actually take? Start from this template:
Frequently asked questions
Start rate = starts ÷ visits. Completion rate = completions ÷ starts. Opt-in rate = opt-ins ÷ completions. Overall = opt-ins ÷ visits. Nothing fancy — same math you'd do on a napkin.
A note on estimates: Percentages are only as good as the inputs. Use the same date range and traffic source for every number, and re-check the raw counts before drawing conclusions.
Turn this into a real lead capture assessment.
Lead Cues packages the same idea into a short, shareable assessment — visitors get a personal result, and you get a scored lead ready to follow up.