Lead Generation Profitability Calculator

Know what a lead is really worth.

Connect acquisition cost, lead quality, sales conversion and customer value. See your true CAC, allowable CPL and where your funnel has the most valuable room to improve.

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Enter your funnel economics

Use an average month and include the costs required to generate the leads—not media spend alone.

Acquisition
The money paid to advertising platforms such as Google, Meta or LinkedIn each month. It matters because this is usually the largest cost of generating leads.$Amount paid directly to ad platforms in an average month
The other monthly costs required to generate leads, such as agency fees, creative work, landing pages and software. Including them gives you a more honest view of what each lead costs.$Agency, creative, tracking and campaign technology costs
The total number of enquiries received in an average month before removing spam, duplicates or fake details. This is the starting point for the whole calculation.Every new enquiry before invalid or duplicate leads are removed
The percentage of enquiries that cannot become customers because they are spam, duplicates, fake or unusable. A high number means marketing budget and sales time are being wasted.%Share of raw leads that are spam, duplicates or unusable
Lead handling and sales
The percentage of genuine leads your team actually speaks with or receives a meaningful reply from. It matters because an interested person cannot buy if nobody reaches them.%Share of valid leads your team successfully reaches
The percentage of contacted leads that are a realistic fit for what you sell—for example, they have the right need, budget and timing. It shows whether marketing is attracting the right people.%Share of contacted leads that meet your agreed sales criteria
The percentage of suitable sales opportunities that become paying customers. It matters because small improvements here can turn the same number of leads into much more revenue.%Share of qualified leads that become paying customers
Customer value
The average amount a new customer pays in their first purchase or contract. It helps show how much revenue your current lead flow creates.$Revenue from the initial sale, before repeat or recurring value
The percentage of sales revenue left after the direct cost of providing the product or service. This is more useful than revenue alone because only the remaining amount can pay for marketing, overheads and profit.%Revenue remaining after the direct cost of delivering the sale
The extra gross profit you expect from repeat purchases, renewals or recurring payments after the first sale. It matters because a customer may be worth much more than their first purchase.$Expected repeat or recurring gross profit after the initial sale
The percentage of gross profit you want to keep after paying to acquire the customer. This creates a safety margin for overheads and profit instead of merely breaking even.%Share of customer gross profit you want left after acquisition cost
Ready to see what the numbers say?

We’ll connect your funnel economics and rank the three most valuable opportunities.

The thinking behind the numbers

A cheap lead can still be an expensive customer.

Platform CPL only describes the first transaction in a much larger system. This model follows the money through validation, contact, qualification and sale so you can make decisions against commercial outcomes—not a surface-level campaign metric.

True CAC

Total acquisition costs divided by customers acquired.

Break-even CPL

Gross profit per customer multiplied by your raw lead-to-customer rate.

Allowable CPL

Break-even economics adjusted to protect your target contribution after acquisition.

Calculation notes

Use the result as a decision model.

This calculator makes your assumptions visible. Replace them with observed CRM and finance data wherever possible.

What costs should I include?

Include the costs required to create the leads you are measuring. That normally means media, agency or internal campaign costs, creative production, lead-generation technology and directly attributable campaign fees. Keeping media separate makes the model easier to audit.

What is the difference between allowable and break-even CPL?

Break-even CPL is the most you could pay before acquisition contribution falls to zero. Allowable CPL protects the percentage of customer gross profit you want to retain after acquisition costs, so it is normally the more useful operating target.

Why use gross profit instead of revenue?

Revenue does not account for the direct cost of fulfilling a sale. Gross profit creates a more realistic ceiling for customer acquisition cost and helps avoid calling campaigns profitable when fulfilment economics say otherwise.

How is the highest-value improvement calculated?

The calculator models five-percentage-point improvements to lead validation, contact, qualification, close and gross margin. It also models the uplift shown for lifetime value, average customer value and repeat or referral growth. Zero-value scenarios are excluded before the three highest-value opportunities are ranked. This is a sensitivity comparison, not a claim that every improvement is equally easy or inexpensive to achieve.

Is my data stored?

No. The calculator runs in your browser. A shareable link contains the values you entered in the link itself, so only create or send one when you are comfortable sharing those figures.

What the model cannot tell you

Know the numbers. Then find what is causing them.

A WKG growth audit connects the calculation to your campaigns, landing pages, tracking, lead handling and sales process—then ranks what to fix first.