Sales Funnel Leakage Calculator

What it does

Identifies where leads drop out of your sales funnel by calculating conversion rates between every stage, pinpointing the biggest leaks, and quantifying the revenue impact of fixing them.

Why it matters

Most companies lose 60-80% of leads between MQL and closed-won. Finding and fixing even one major leak point can add 20-40% more revenue without increasing top-of-funnel spend.

Definition

Funnel leakage is the percentage of prospects who drop out at each stage of the sales funnel. It's measured as the conversion rate between consecutive stages.

Assumptions

• •All leads enter through a defined top-of-funnel stage
• •Stage definitions are consistent across the team
• •Dropped leads represent lost revenue opportunity

How to interpret your results

Focus on the stage with the lowest conversion rate first — that's your biggest leak. Fixing a 20% conversion at one stage has more impact than improving a 60% conversion elsewhere.

How to improve

• Speed up response time

  Responding to leads within 5 minutes increases conversion 21x

• Qualify harder

  Better qualification means fewer leads leak from middle stages

• Automate nurture

  Dropped leads aren't dead — automated nurture sequences recover 15-20% over time