Lead & Automation

Lead Conversion Calculator

Calculate the percentage of leads that become customers using a consistent lead cohort and measurement period.

This conversion result is descriptive, not a forecast. Verify lead and customer definitions before comparing channels or teams.

How to use this tool

How to use the Lead Conversion Calculator

Enter total leads and customers won from the same cohort. Keep the date range, channel definition, and conversion event consistent.

  1. Choose one lead cohort or reporting period.
  2. Count leads and customers won using consistent definitions.
  3. Calculate the rate and compare like-for-like segments.
Method

Formula or calculation method

Lead conversion rate = customers won ÷ total leads × 100.

Interpretation

What the result means

The percentage shows how efficiently a lead cohort became customers. It does not explain lead quality, deal size, sales-cycle length, or profitability by itself.

Example

Worked example

30 customers won from 200 leads equals a 15% lead conversion rate.

Avoid

Common mistakes

Avoid mixing different periods, counting duplicate leads, comparing raw inquiries with sales-qualified leads, or counting customers outside the chosen cohort.

Best use

When to use it

Use it to compare acquisition channels, sales stages, campaigns, territories, or process changes over consistent periods.

Common questions

Lead Conversion Calculator FAQ

How do I calculate lead conversion rate?

Divide customers won by total leads from the same cohort, then multiply by 100.

What counts as a converted lead?

Define the conversion before measuring. For this calculator, the default interpretation is a lead that became a paying customer.

Can I compare conversion rates by channel?

Yes, if each channel uses the same date range, lead definition, conversion event, and attribution method.