Quick definition
CPC (cost per click) is the average price you pay for each click on your ad: total spend ÷ total clicks. It links ad budget to actual traffic.
CPC is total spend divided by total clicks — the average price of one click. One caution before comparing anything: platforms count clicks differently. Meta, for instance, reports both “clicks (all)” — which includes reactions, profile taps, and expands — and “link clicks,” the ones that actually send someone to your destination. For traffic and conversion math, link clicks are almost always the number that matters.
CPC is the bridge between buying attention and buying outcomes. It connects to CPM through click-through rate — at a given CPM, your effective CPC is the impression cost spread across however many clicks the creative earns — which means creative quality, not just bidding, sets your traffic price. And CPC is only half of a judgment: a click is worth your conversion rate times the value of a conversion, so a “cheap” click that never converts is the most expensive kind.
A campaign spends €240 at an €8 CPM, buying 30,000 impressions. With a 2% click-through rate it earns 600 link clicks: 240 ÷ 600 = €0.40 per click. If creative fatigue drags CTR down to 1%, the same €240 buys only 300 clicks and CPC doubles to €0.80 — without the auction price moving at all. Most CPC problems are CTR problems wearing a disguise.
Anchor CPC to your economics: if 4% of visitors convert and a conversion is worth €50, a click is worth about €2 — that, not a published average, defines your ceiling. To lower CPC, improve the creative and the hook before touching bids; CTR gains cut click costs at any CPM. And read CPC alongside conversion rate, because optimizing for the cheapest possible clicks tends to attract the audience least likely to buy.
Where SocialKit fits
Organic clicks cost effort instead of budget — SocialKit’s per-network customization and first-comment scheduling put each post’s link where the platform actually makes it clickable, on all 11 networks from one composer.
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FAQ
Quick answers to the questions people ask most about this term.
SocialKit posts to all 11 platforms from one calendar and tracks how every post performs, so the numbers explain themselves. Try it free for 7 days.
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