Cost per lead (CPL)

Cost per lead tells you what each new inquiry costs to generate. The formula is simple: CPL = spend ÷ leads, for the same channel and the same period.

Ad platforms report their own version. Google Ads, for example, reports cost per conversion ("Cost / conv."), calculated by dividing your total cost by the number of conversions it counted. That figure is only as good as the conversion tracking behind it, so compare channels using leads counted in one place, usually your CRM.

Getting the inputs right

• Define a lead once. A form submission, a call over a set length, a chat that leaves contact details, a booking. Use the same definition for every channel.
• Count people, not events. Someone who fills in a form and then calls is one lead.
• State what spend includes. Ad spend only, or also agency fees and creative? For SEO or content, it's the cost of the work. Either is fine; mixing them isn't.

Why CPL isn't the goal

CPL measures the cost of an inquiry, not what happens next. A low CPL can hide poor-quality leads, and a high one can hide a channel that brings your best customers. The number that matters is cost per customer: spend divided by the leads that actually booked or bought. Follow-up, lead qualification and speed to lead decide how many leads become customers, so track CPL next to conversion from your sales pipeline.

How it relates to Worcia

Digital marketing, Worcia's paid ads, social, email and content service, reports cost per lead next to cost per booked customer, tracked from the ad to your CRM. Cadenza, Worcia's sales follow-up automation, answers and follows up every ad lead in minutes, so paid clicks aren't wasted. For choosing channels, read Google Ads vs Meta Ads for lead generation.