Free tool
Lead Generation ROI & Target CPL Calculator
Work out the cost per lead you can actually afford, whether your ads make money, and the budget you need to hit your goal. Built on profit math, not vanity metrics.
The ceiling on what a lead is worth to you, from your deal economics and close rate.
= $30,000 value per client
= 5.0% close rate
Above $750.00 per lead you lose money. In practice, aim 20% to 30% below this ceiling so every client leaves real profit behind.
Why break-even CPL beats counting leads
This lead generation ROI calculator answers the question that actually decides whether your ads work: what can you afford to pay for a lead? Most dashboards celebrate vanity metrics like impressions, clicks, and raw lead counts. None of them pay invoices. Profit comes from three numbers working together: your average deal value, your gross margin, and your lead-to-customer close rate.
Multiply them and you get your break-even CPL, the hard ceiling on what a lead is worth. Pay right up to it and every dollar of gross profit goes to the ad platform, so in practice you aim well below it. A $22 lead that never closes is more expensive than a $110 lead that closes 1 in 4. This tool makes that math instant, for one-time sales and for monthly retainers.
How to use it
- What CPL can I afford? Choose one-time sale or monthly retainer, enter your deal economics and gross margin, and your average monthly leads and clients (the tool works out your close rate). You get your break-even cost per lead. In retainer mode it uses what a client is worth over their whole stay.
- Is my lead gen profitable? Add your ad spend and any management fee. For one-time sales you get net profit for the month. For retainers you get net profit over a client's lifetime, plus month-one cash, CAC payback in months, and LTV:CAC, since a negative month one is normal for subscription businesses.
- What budget do I need? Set a revenue or customer goal, your close rate, and your expected cost per lead. The planner works backwards to the leads and ad budget required, with month-one and lifetime profit for retainers.
How to read your results
- Never operate at break-even. Break-even CPL is a ceiling, not a target. Paying exactly break-even means every dollar of gross profit goes to the ad platform and any bad week becomes a loss. Aim 20% to 30% below it so real profit is left behind.
- Break-even CAC is the most you can pay to win a customer. Keep your real CAC comfortably under it.
- Net profit and CAC payback matter most for retainers. A negative month one is fine when each client pays back their acquisition cost quickly and stays long enough to clear a 3:1 lifetime LTV:CAC.
- Net profit for one-time sales tells the whole story. Red means fix the weakest link first: CPL, close rate, or deal value.
The formulas, shown plainly
Customers won per month / Leads per monthDeal value, or Monthly retainer x Months retainedValue per client x Gross margin % x Close rateValue per client x Gross margin %Ad spend / Leads per month(Ad spend + Fee) / Customers won per month(Customers x Value per client x Gross margin %) - Ad spend - Fee(Customers x Monthly revenue x Gross margin %) - Ad spend - FeeCAC / (Monthly retainer x Gross margin %)Lifetime gross profit per client / CACCustomers needed / Close rate2025-2026 lead gen benchmarks
| Metric | Benchmark |
|---|---|
| Average B2B cost per lead (blended) | About $84 |
| Google Ads CPL | About $70 |
| Meta Ads CPL | About $22 |
| LinkedIn Ads CPL | $110 or more |
| MQL-to-SQL conversion | 12% to 21% |
| LTV:CAC ratio | 3:1 healthy floor, 4:1 to 5:1 strong |
| CAC payback period | Under 12 months is healthy |
General industry ranges, not guarantees. CPL varies widely by sector: legal and financial services run highest, ecommerce leads run lowest. Close rates vary even more, so always enter your own.