ANALYTICS · THE YELL SOCIAL GLOSSARY
Conversion rate.
The percentage of eligible interactions that produce a defined conversion. The denominator might be ad interactions, clicks, users, or sessions, so the reporting definition matters.
A simple example
If 20 of 500 landing-page sessions produce a signup, the session-based signup conversion rate is 4%.
Put it into practice
Write the conversion action and denominator next to the number so everyone interprets it consistently.
Further reading: Google Ads: conversion rate