Break-even CPL Calculator
Find the maximum cost per lead your gross profit and sales funnel can sustain before acquisition becomes unprofitable.
Break-even CPL is a ceiling, not a target. Operating at the ceiling leaves no room for overhead, refunds, sales cost or uncertainty, so set the working target below it.
Your working result
$147working CPL after safety margin- Deals needed
- 10.0
- SQLs needed
- 50
- Break-even CPL
- $210
- Safety margin
- 30%
Planning model, not a performance guarantee. Replace every input with CRM and account evidence before changing spend.
Ask Thomas to validate the model →Methodology
The formula behind the result
Break-even CPL = average deal value × gross margin × lead-to-SQL rate × SQL-to-customer rate.
Application checklist
Turn the output into a decision
- 01Use gross profit, not revenue, as the economic base.
- 02Exclude referrals and partner leads from paid-media funnel rates.
- 03Apply a 20–40% safety margin below break-even.
- 04Review again when pricing, margin or qualification changes.
Practical questions
Before you use the result
Does this include sales salaries?
Not directly. Reduce the target further if sales delivery cost is material.
Can I use lifetime value?
Only when retention is stable and cash flow can fund the payback period. First-year gross profit is safer for planning.
Why is my current CPL above break-even but the business is profitable?
The model may omit expansion revenue, cross-sell or a better actual close rate. Reconcile the inputs before changing spend.