CPC calculator
Cost per click and CTR from your spend, and how many clicks a budget buys. The formula shows under the result.
Spend, clicks and impressions
How many clicks a budget buys
Everything runs in your browser: no number is sent anywhere.
What is CPC?
CPC is the cost per click: what you pay, on average, for each click on the ad. It is the price metric for traffic campaigns and the bridge between CPM (the price of being shown) and CPA (the price of converting). On search platforms such as Google Ads, CPC is the most common way of being charged.
How to calculate CPC and CTR: the formulas
CPC = spend ÷ clicks. CTR = clicks ÷ impressions × 100. CTR tells you what share of the people who saw the ad clicked; CPC tells you what each click cost. They move together: in an auction, an ad with a higher CTR usually pays less per click.
Example: $5,000 with 5,200 clicks is a $0.96 CPC. With 400,000 impressions, CTR is 1.3%. With a $3,000 budget and a $1.20 CPC, the campaign buys 2,500 clicks.
Is a low CPC always good?
No. The click is a means, not the end. A cheap CPC with a slow page, the wrong audience or accidental taps turns into an expensive CPA. Look at CPC together with conversion rate and CPA, and check in GA4 whether clicks are turning into sessions: the gap between platform clicks and GA4 sessions usually comes from wrong UTMs, redirects or consent, not from the calculator.
Platform clicks and GA4 sessions
The platform counts the click; GA4 only counts the session after the page loads with the tag. A 10% to 20% gap is common. Beyond that, the cause is usually a link without UTMs or with broken ones. The UTM builder assembles the link and shows the GA4 channel before you publish, and the guide on gclid vs UTM covers the Google Ads case.
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Frequently asked questions
Are average CPC and max CPC the same thing?
No. Max CPC is the bid you set: the ceiling you accept to pay. Average CPC is what you actually paid, divided by clicks. The calculator works with average CPC.
What is a good CTR?
It depends on platform and format: search has a much higher CTR than display and social, because the person is already looking. Compare CTR with your own history in the same placement, not with market averages.
Does the calculator send my numbers anywhere?
No. The math runs in your browser and nothing is sent to any server.