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The Madison Avenue Field GuideA field guide to marketing & advertising, by Brandon Mina

GlossaryMeasurement & AttributionConversion Rate

Measurement & Attribution

Conversion Rate

The percentage of visitors or clicks that complete a desired action.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

Conversion rate is the percentage of visitors, clicks or users who complete a desired action, such as a purchase, signup or download. It is calculated by dividing conversions by total visitors or interactions and multiplying by 100. It measures how effectively a page, campaign or funnel turns attention into results, and guides optimization priorities.