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How to calculate lead conversion rate

2026-05-20 16:15 · Paid Marketing

How to calculate lead conversion rate

Learn the lead conversion rate formula, see a simple example, and understand how it affects CPL, CPA, and CAC.

Lead conversion rate measures the percentage of leads that become customers or complete a target outcome later in the funnel.

The formula is:

Lead conversion rate = customers / leads x 100

For example, if a campaign generates 800 leads and 64 become customers, the lead conversion rate is 8.00%. If another campaign generates 300 leads and 45 become customers, the lead conversion rate is 15.00%.

This metric is important because lead volume alone can be misleading. A campaign can generate many leads at a low cost, but if those leads rarely become customers, the campaign may still be inefficient.

Use the Lead Conversion Rate Calculator at /tools/lead-conversion-rate-calculator to measure the lead-to-customer step. Then compare the result with CPL, CPA, CAC, and lead value to understand the full economics of the funnel.
Lead Conversion Rate CPL Lead Generation

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