Marketing & measurement
Engagement rate
A ratio expressing engagement against a chosen base, such as reach, impressions or followers.
In everyday use
40 interactions divided by 1,000 reached accounts gives 4%.
What to keep in mind
Always state the denominator. GA4 uses engaged sessions, a different definition.
Also searched as: engagement ratio
Further reading
Original explanation and example by Perspectism. Further reading may cover the wider subject, rather than this exact wording. Edition updated 7 October 2026.
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