What is CPC? Cost per click explained
CPC, or cost per click, is the average amount you pay each time someone clicks your ad. Here is what CPC means, how to calculate it, the highest CPC you can afford, a worked SAR example and a current search benchmark.
CPC, or cost per click, is the average amount you pay each time someone clicks your ad. Divide total spend by clicks. It is the pricing model behind most search advertising and a key input for budgets: with your CPC and conversion rate, you can estimate how much traffic and how many sales a budget will buy.
How do you calculate CPC?
| Metric | Formula |
|---|---|
| Average CPC | Ad spend ÷ clicks |
| CPC from CPM | CPM ÷ (CTR × 1,000) |
| Highest affordable CPC | Break-even CPA × conversion rate |
In Google Ads, your max CPC is "the highest amount that you're willing to pay for a click on your ad", and the amount you are actually charged is your actual CPC. Google's CPC bidding help page notes that you will often be charged less than your maximum, sometimes much less.
CPC example
Illustrative figures for a Saudi furniture retailer running search ads:
- Spend: SAR 15,000. Clicks: 6,000. Average CPC: SAR 2.50.
- Conversion rate: 2%, so 120 orders and a CPA of SAR 125.
- Contribution per order: SAR 200, so the highest CPC that still breaks even is SAR 200 × 0.02 = SAR 4.00.
The retailer has room to bid up on keywords that convert at 2% or better, but not on ones that convert at 1%, where the ceiling halves to SAR 2.00.
What is a good CPC?
WordStream's 2026 Google Ads benchmarks put the median CPC at $5.42 across 13,474 US search campaigns run between April 2025 and March 2026. Your market, keywords and industry will differ, so the better test is your own: a good CPC is one below your highest affordable CPC, which is break-even CPA multiplied by conversion rate.
Related terms
- CTR: the share of impressions that become clicks.
- CPM: the cost of impressions rather than clicks.
- Conversion rate and CPA: what each click turns into, and what that costs.
How Grower helps
Grower's channels leaderboard shows cost, CTR, conversions and CPA for every connected channel, and its recommendation engine suggests changes every week with the evidence behind them. Approve one and Grower pushes it to the channel for you.
Frequently asked questions
What is the difference between CPC and PPC?
PPC, or pay per click, is the advertising model in which you pay only when someone clicks your ad. CPC, or cost per click, is the metric that tells you how much each of those clicks cost on average. PPC describes how you buy, and CPC measures what you paid. Search ads on Google and Microsoft are the best-known PPC channels.
Why is my CPC so high?
Common causes are competitive keywords, broad match terms pulling in expensive queries, low ad relevance and peak-season demand. Review search terms and add negatives, tighten match types and ad groups, improve ad copy and landing pages, and compare CPC with conversion rate: an expensive click that converts well can still be cheap per sale.
Is a lower CPC always better?
No. Cheap clicks from poorly matched audiences or placements often convert badly, which raises CPA. What matters is the cost per sale or lead and the value it brings. A SAR 6 click converting at 5% gives a SAR 120 CPA, which is cheaper than a SAR 2 click converting at 1%, which gives SAR 200.
Turn your CPC and conversion rate into a full plan with the free marketing budget calculator.