What is CPC (cost per click)

Formula

Average CPC = total cost of clicks ÷ number of clicks

Pay-per-click pricing is also called PPC, in Google Ads' own terminology.

Hypothetical example

A language school spent $3,000 on Google search ads and received 1,500 clicks. Average CPC was $3,000 ÷ 1,500 = $2.

If the course page converts 4% of visits into enrollments, the school pays $2 ÷ 0.04 = $50 per enrollment in media. Doubling page conversion to 8% cuts that cost to $25, without changing the CPC.

Max CPC and actual CPC

Google Ads has two CPCs. Max CPC is the bid: the highest amount the advertiser is willing to pay for a click. Actual CPC is what they really pay. According to Google Ads Help, max CPC is the most you will typically be charged, but you will often be charged less, sometimes much less.

That happens because the price comes from an auction. Advertisers do not pay their full bid: they pay what is needed to keep the position they won against competitors.

What makes a click cost more or less

• Competition for the keyword. Terms many advertisers fight over, such as insurance, law and real estate, cost more.
• Ad quality. In Google Ads, Quality Score assesses ad relevance, expected clickthrough rate and landing page experience. A more relevant ad tends to need a lower bid for the same position.
• Time, location and device. The same click can be priced differently at different times and places.
• Seasonality. Dates such as Black Friday and the holidays make the auction more expensive.

A low CPC is not the goal

CPC measures the cost of a visit, not the cost of a customer. A $1 click that does not convert costs more than a $5 click that turns into a sale. Campaigns optimized only for the lowest CPC tend to bring cheap, uninterested traffic.

The number that matters comes next: CPC divided by conversion rate gives cost per conversion. Improving the page is often the cheapest way to improve the results of a high CPC.

CPC, CPM and CPV

These are three ways to buy media. With CPC you pay per click; with CPM, per thousand impressions; with CPV, per video view. The choice depends on the goal: CPC to drive people to a site, CPM for reach and brand recall, CPV for video.

Pricing models

	You pay per	Best for
CPC	Click	Traffic and conversion
CPM	Thousand impressions	Reach and recall
CPV	Video view	Video and consideration

Frequently asked questions

What does CPC stand for?

CPC stands for cost per click. It is what you pay for each click on an ad, and also the name of the pay-per-click pricing model.

How do you calculate average CPC?

Divide the amount spent on clicks by the number of clicks. $2,000 and 1,000 clicks is an average CPC of $2.

What is the difference between max CPC and actual CPC?

Max CPC is your bid, the highest amount you accept to pay. Actual CPC is what you really pay, which is often less than the maximum.

Are CPC and PPC the same thing?

Nearly. PPC, pay-per-click, is the name of the pricing model. CPC is the amount paid for each click within that model.

How can I lower my CPC?

By improving ad and page relevance, choosing more specific keywords and adjusting expensive times and locations. But the focus should be cost per conversion, not CPC itself.

Related terms

• CTRCTR (clickthrough rate) is the percentage of people who clicked after seeing an ad, an email or a search...
• CPMCPM (cost per mille, or cost per thousand impressions) is what it costs to show an ad a thousand times...
• CPACPA in marketing is cost per acquisition: how much a business spends on ads to generate each conversion...

Sources

• Google Ads Help: cost-per-click (CPC)
• Google Ads Help: auction
• Google Ads Help: Quality Score

Rodrigo Fávaro

Founder of ROO3, a marketing and technology agency in São José do Rio Preto, Brazil. Builds AI products running in production (Tobia, gerar.app, Pense Mercado) and maintains the AI Benchmark, a public ranking of AI models.

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