MetricsMay 28, 2026· 4 min read

What Is CTR? Click-Through Rate Explained (Formula + How to Read It)

CTR (click-through rate) is clicks divided by impressions, as a percentage. It's the clearest signal of how compelling your ad is. Here's the formula, what's a good CTR, and the traps to avoid.

Frequently asked questions

What is a good CTR for ads?
It depends on the platform, placement and industry, so the most useful benchmark is your own history. Watch the trend: a declining CTR on a previously strong ad signals fatigue, regardless of the absolute number.
Does a high CTR always mean a good ad?
No. A high CTR with weak conversions can mean clickbait, a wrong audience, or a landing page that doesn't match the ad. Read CTR alongside conversion rate and CPA.
How is CTR related to CPC?
They're linked through CPM: a higher CTR generally lowers your CPC because you earn more clicks from the same impressions. Improving CTR is one of the most reliable ways to bring CPC down.

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