What is CTR?
Nicklas Segatz Mortensen · Growth Hacker · Fractional CMO · Meta Ads Nerd · 8 July 2026 · 3 min.
Definition
CTR (Click-Through Rate) is the number of clicks divided by the number of impressions, expressed as a percentage. If an ad gets 30 clicks from 1,000 impressions, CTR is 3%.
Also called: CTR, Click-Through Rate, Click rate
Sådan virker det
CTR (Click-Through Rate) er andelen af visninger, der bliver til klik. Den er et hurtigt mål for, om annoncen eller søgeresultatet er relevant nok til at stoppe folk — men et højt CTR er kun værd noget, hvis klikkene også konverterer.
01What CTR tells you — and what it doesn't
CTR is a quick relevance signal: does the ad or search result stop people enough to make them click? In paid search, CTR also affects Quality Score and therefore what you pay per click. On paid social, CTR is tightly linked to the creative and the hook.
But CTR is a mid-funnel metric, not a goal. An ad can have a sky-high CTR and dismal economics if the clicks don't convert — clickbait pulls in people who don't buy. CTR should always be read alongside conversion rate and CPA.
02CTR, CPC and CPM are connected
The three are mathematically linked: CPC = CPM / (CTR × 10). Raise CTR with better creative and your CPC falls even though CPM is unchanged — you get more clicks out of the same impressions. It's one of the cleanest ways to lower your click price without touching the budget.
That's why creative testing isn't only a top-funnel exercise: a higher CTR propagates all the way down into the economics via lower CPC and a better auction position.
Frequently asked questions
Is a high CTR always good?+
Not on its own. A high CTR with a low conversion rate often means the ad is pulling in the wrong clicks. CTR is a relevance signal, but it's the conversion behind it that decides whether the click was worth the money.
How are CTR and CPC related?+
Inversely: a higher CTR gives a lower CPC at the same CPM, because you get more clicks out of the same impressions. In paid search, a higher CTR also improves Quality Score, which can lower the click price further.
Related terms
Glossary
What is CPC?
CPC (Cost Per Click) is ad spend divided by the number of clicks. Pay €55 for 100 clicks and your CPC is €0.55.
Read the entry →Glossary
What is CPM?
CPM (Cost Per Mille) is the price for 1,000 ad impressions. Spend €6 to reach 1,000 people and your CPM is €6.
Read the entry →Glossary
What is conversion rate (CVR)?
Conversion rate (CVR) is the number of conversions divided by the number of visitors, expressed as a percentage. If 2 out of 100 visitors buy, CVR is 2%.
Read the entry →
Nicklas Segatz Mortensen
Growth Hacker · Fractional CMO · Meta Ads Nerd at Oaksmond
Growth hacker and fractional CMO with 10+ years' experience and hundreds of millions in managed ad spend behind him. Background from larger Danish and international scale-ups, and from the agency world.
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