Coût par prospect

Cost per lead (CPL) is the average amount a brand spends to acquire one new lead—a person who shares their contact details and signals interest in a product or service. Marketers use it to measure a campaign’s power to turn ad budget into potential customers.

How to calculate cost per lead

In marketing, CPL stands for cost per lead—a core lead generation metric. Here’s the formula:

CPL = total spend ÷ number of new leads

Pull both numbers from the same campaign and the same timeframe.

Here’s a quick example: If a lead ads campaign spends $2,000 and generates 80 leads, divide $2,000 by 80 to get a CPL of $25.

Define your spend before you report. While ad spend is the baseline, factor in creative production and tool costs for a fully loaded view of each lead.

Cost per lead vs. cost per click vs. customer acquisition cost

Each metric measures a different funnel stage. Mix them up, and your reporting tells the wrong story.

Metric	What it measures	Formula	Best for
CPC	The price of one click	Spend ÷ clicks	Judging ad engagement and bids
CPL	The price of one lead	Spend ÷ new leads	Judging how a campaign fills the pipeline
CAC	The fully loaded cost of one paying customer	Sales and marketing costs ÷ new customers	Judging profitability and payback

With cost per click (CPC), you pay for the click regardless of whether it becomes a lead. The cost of a paying customer is customer acquisition cost (CAC), which also includes sales costs. CPL counts the cost of a lead whether or not it closes.

First Page Sage’s 2026 cost per lead report draws this same line between leads and paying customers. It puts the blended average across 30 industries at $400, ranging from $96 (eCommerce, HVAC) to $970 (Higher Education). That number blends paid and organic marketing, so it isn’t a social ads benchmark.

The takeaway: A cheap click doesn’t guarantee a cheap lead—and a cheap lead doesn’t guarantee a profitable customer.

What affects cost per lead on social ads

Social ad CPL varies by platform, industry and objective. WordStream’s 2026 Facebook ads benchmarks report an average CPL of $27.39 for leads campaigns across industries. The data covers 452 US campaigns between April 2025 and June 2026, and WordStream notes its averages are medians.

These factors shape your CPL:

Industry and offer. First Page Sage finds that CPL rises with contract value and sales cycle length.
Platform and ad format. On-platform lead forms and dedicated landing pages offer different experiences that affect conversion rates.
Pricing model. With CPM pricing, you pay for impressions, so your CPL depends on how many viewers convert.
Auction competition. More advertisers competing for the same audience can increase bids.
Audience targeting. Your targeting determines who sees your ad and influences lead quality.

How to lower CPL

Lowering your CPL means extracting more qualified leads from your budget. Test these tactics and track the results:

Refine your targeting. Compare audience segments to identify which ones deliver qualified leads at a sustainable cost.
Test your creative and offer. Experiment with headlines, visuals and calls to action. Shift spend toward the combinations that generate qualified leads.
Reduce friction in your forms. Ask only for the information you need to follow up and qualify leads. A/B test on-platform forms against landing pages to see which performs better.
Review lead quality alongside cost. Track how many leads qualify and become customers. A low CPL matters most when those leads support your business goals.

Watch lead quality, too. A low CPL means little when those leads never qualify. For ways to bring your CPL down, explore these social media lead generation tactics.

Stop guessing and start optimizing. Start a free trial to track your cost per lead alongside the rest of your paid metrics in Sprout Social’s Paid Performance Reporting.