Sales Funnel Drop-Off Calculator
Biggest volume loss beats worst percentage.
Biggest leak by volume
Step 1
27,840 people lost
The worst rate is at step 2 and the biggest volume loss is at step 1. Fix the volume one first — a smaller percentage improvement on a bigger population is worth more, and teams routinely chase the alarming percentage instead.
How the Sales Funnel Drop-Off Calculator works
The worst drop-off rate and the biggest volume loss are usually at different steps. Fix the volume one first — a smaller percentage improvement on a bigger population is worth more, and teams routinely chase the alarming percentage instead.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
How do I find the biggest funnel leak?
Count people lost at each step, not the percentage. A 90% drop from a step only 200 people reach loses fewer customers than a 20% drop from a step 10,000 reach.
Should I ever chase the worst percentage?
When the step is cheap to fix or the percentage is anomalous. A step losing 90% when comparable sites lose 40% suggests something is broken rather than merely suboptimal.
How many steps should a funnel have?
Enough to isolate distinct problems, few enough that each has meaningful volume. Five is common for ecommerce and works well.
What about people who skip steps?
Sequential funnels miscount them. If a meaningful share enter checkout directly from a product page, model it as a separate path rather than forcing everyone through one sequence.