Conversion in marketing

Conversion is the share of users who complete a target action—a baseline metric for CRO and reporting.

Three pillars in the article: essence, business value, and practical use.

An encyclopedia of digital marketing terms. See also all articles in «Marketer's terminology».

What it is

Goals map to the job: lead, purchase, subscription. Ads and CRM must use one shared definition.

Without alignment teams debate different numbers.

Instrument analytics events, audit duplicates, tie reporting to UTMs. Use micro-conversions for long sales cycles.

Table 1. Definition and business context

Criterion	In short
Definition	Goals map to the job: lead, purchase, subscription. Ads and CRM must use one shared definition.
Why businesses care	Without alignment teams debate different numbers.
Effect when done right	Lift in conversion scales outcomes across every channel at once.

Table 2. Practice, ecosystem, and related terms

Area	What to consider
How to apply	Instrument analytics events, audit duplicates, tie reporting to UTMs. Use micro-conversions for long sales cycles.
Works with	Pairs with the funnel, CPA, and structured testing.
In the glossary	CRO: conversion rate optimization, Sales funnel in digital marketing, CPA: cost per action, UTM parameters

Lift in conversion scales outcomes across every channel at once.

Pairs with the funnel, CPA, and structured testing.