Marketing & Paid AdvertisingCPC

Cost Per Click

The average amount you pay each time someone clicks your ad. It is your ad spend divided by the number of clicks.

1 min readLast updated Apr 2026
Reviewed by Golden Digital·Operator-reviewed ecommerce reference

The average amount you pay each time someone clicks your ad. It is your ad spend divided by the number of clicks.

Use our free Meta Ads Budget Calculator to see the daily and monthly budget your revenue goal needs.

Why It Matters

CPC is what it costs to get one person onto your site. Combined with your conversion rate, it tells you what each sale costs before you have spent a dollar more. If your CPC is higher than your store can turn into profit, no amount of scaling will fix it.

Formula

CPC=Ad Spend/Clicks
Example: CPC = $500 / 400 = $1.25

Practical Example

Scenario

You spend $500 on ads and get 400 clicks to your product page.

Calculation

CPC = $500 / 400 = $1.25

Result

Each visitor costs $1.25. If 2 in every 100 visitors buy, each sale costs you about $62.50 in ad spend, which you can check against your margin per order.

In-Depth Explanation

CPC ties together two things: what impressions cost (CPM) and how many people who see the ad click it (CTR). On Meta, check which clicks you are looking at: "CPC (all)" counts any click on the ad, while "cost per link click" counts only clicks through to your site.

Pro Tips

  • 1Work backwards from your margin: the most you can pay per click is roughly your profit per order times your conversion rate.
  • 2Look at cost per link click, not all clicks, when you want to know what a site visit really costs.
  • 3If CPC climbs, check whether CPM rose or CTR fell. The fix is different for each.

Common Mistakes to Avoid

Optimizing for the lowest CPC. Cheap clicks from people who never buy cost more than pricier clicks that convert.
Comparing CPC across platforms or campaign goals as if it measured the same thing.
Ignoring what happens after the click. A slow or confusing landing page wastes every click you paid for.

Frequently Asked Questions

CPC = CPM / (CTR × 1,000), with CTR as a decimal. At a $10 CPM and a 1% CTR, that is $10 / (0.01 × 1,000) = $1 per click. Lower CPM or higher CTR both bring CPC down.

Usually not, if you sell online. Optimizing for purchases tells the platform to find buyers. Optimizing for clicks finds people who click, and they are often not the same people.

Related Tools

Meta Ads Budget Calculator

Related Terms

Cost Per Mille
CPM

What you pay for every 1,000 times your ad is shown. "Mille" is Latin for thousand, so CPM is also called cost per thousand impressions.

Click-Through Rate
CTR

The share of people who saw your ad and clicked it: clicks divided by impressions, shown as a percentage.

Cost Per Acquisition
CPA

The cost of acquiring a specific action through a particular campaign or channel—such as a purchase, sign-up, or lead.

Conversion Rate
CVR

The percentage of website visitors who complete a desired action, typically a purchase.

Quality Score

A Google Ads diagnostic metric (1-10) evaluating keyword relevance and landing page quality.

Free Calculator

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