Conversion Funnel Calculator
Calculate the revenue yield of your marketing funnel by multiplying stage-by-stage conversion rates from raw traffic to paying customers. Ideal for diagnosing where leads are being lost.
About this calculator
A conversion funnel tracks how website visitors progress through qualification stages — Visitor → Lead → Marketing Qualified Lead (MQL) → Sales Qualified Lead (SQL) → Customer. The formula chains these rates multiplicatively: Revenue = trafficVolume × (visitorToLead / 100) × (leadToMQL / 100) × (MQLtoSQL / 100) × (SQLtoCustomer / 100) × avgCustomerValue. Because each rate is expressed as a percentage, dividing by 100 converts it to a decimal multiplier. A small improvement at an early stage (e.g., visitor-to-lead) compounds dramatically downstream. For example, doubling your lead rate doubles every subsequent stage's output without touching the other rates. This makes funnel analysis a high-leverage activity for revenue growth.
How to use
Assume 10,000 monthly visitors, a 5% visitor-to-lead rate, 40% lead-to-MQL, 50% MQL-to-SQL, 30% SQL-to-customer, and $2,000 average customer value. Step 1 — Leads: 10,000 × 0.05 = 500. Step 2 — MQLs: 500 × 0.40 = 200. Step 3 — SQLs: 200 × 0.50 = 100. Step 4 — Customers: 100 × 0.30 = 30. Step 5 — Revenue: 30 × $2,000 = $60,000. The full formula confirms: 10,000 × 0.05 × 0.40 × 0.50 × 0.30 × 2,000 = $60,000.
Frequently asked questions
What is an MQL versus an SQL in a conversion funnel?
A Marketing Qualified Lead (MQL) is a prospect who has shown enough engagement — such as downloading a whitepaper or attending a webinar — to be worth nurturing by the marketing team. A Sales Qualified Lead (SQL) has been further vetted, typically by a sales development rep, and meets criteria like budget, authority, need, and timeline (BANT). The distinction matters because it separates marketing efficiency from sales efficiency, letting you pinpoint exactly where the handoff between teams is breaking down.
How can I improve my visitor-to-lead conversion rate?
The visitor-to-lead rate is most directly influenced by your landing page quality, call-to-action clarity, and lead magnet value. A/B testing headlines, form length, and page load speed commonly yields 20–50% improvements. Targeting more relevant traffic through tighter keyword and audience segmentation also raises this rate because visitors arrive with higher intent. Even a 1–2 percentage point improvement here multiplies through the entire funnel, making it one of the highest-ROI optimizations available.
Why does a small change early in the funnel have such a big impact on revenue?
Because funnel stages are multiplicative, not additive. If you improve your visitor-to-lead rate from 5% to 6%, you generate 20% more leads, which flows through every subsequent stage unchanged, producing 20% more customers and 20% more revenue. Contrast this with improving the SQL-to-customer rate at the bottom of the funnel — the same relative improvement affects far fewer people. This compounding effect means early-funnel optimizations almost always have the highest revenue leverage, even though they feel the furthest from the sale.