Why does CPC matter if I care about impressions, not clicks?

It tells you the direct cost of each click, useful for calculating cost per acquisition downstream.

Can CTR and CPM both be calculated from the same campaign data?

Yes — this tool computes all three from the same three inputs.

Why is search ad CTR usually higher than display ad CTR?

Search ads reach users already actively looking for something related to the ad, showing clear intent.

Does a high CTR always mean a successful campaign?

Not necessarily — CTR measures ad relevance/appeal, not what happens after the click.

How is CPC related to CTR?

Not directly derived, but often inversely related in practice on auction-based platforms.

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CTR Calculator

Click-through rate, cost per click, and CPM from one set of campaign numbers.

🔒 Runs entirely in your browser — nothing here is ever uploaded

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Last reviewed 2026-08-30

About the CTR Calculator

Calculates click-through rate (CTR), cost per click (CPC), and cost per 1,000 impressions (CPM) together from one set of campaign numbers — spend, impressions, and clicks — since these three metrics are commonly compared side by side when evaluating ad performance.

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How to use it

Enter your ad spend, impressions, and clicks for the period.
Read your CTR, CPC, and CPM together in the result panel.

Formula

CTR = (clicks ÷ impressions) × 100. CPC = ad spend ÷ clicks. CPM = (ad spend ÷ impressions) × 1,000.

Worked example

$1,000 spend, 250,000 impressions, 5,000 clicks: a 2% CTR, $0.20 cost per click, and $4.00 CPM — all three computed from the same three inputs.

Interpreting your result

'Good' CTR varies enormously by platform, ad format, industry, and placement — search ads typically see far higher CTR than display or social ads shown to a passive audience.

Recommendations

• CTR alone doesn't measure conversion quality — a high CTR with a low conversion rate can indicate misleading ad creative.
• Compare CTR within the same platform and ad format.
• CPC and CPM describe the same spend and traffic from two different angles.

Frequently asked questions

It depends heavily on platform and ad format — compare against your own historical data or same-format benchmarks.