Cost per click, or CPC, measures how much an advertising campaign spends on average for each recorded click. It is useful for comparing campaigns, ad groups, keywords, or channels when you know total spend and total clicks.
Quick Answer
CPC = Total Advertising Cost Γ· Number of Clicks
Inputs Explained
Total cost is the amount spent during the period being measured. Clicks is the number of clicks attributed to that spend. CPC is an average, so individual clicks may effectively cost different amounts in an auction-based advertising system.
How to Use the CPC Calculator
- Enter the total advertising cost.
- Enter the number of clicks.
- Calculate the average cost per click.
- Compare CPC with conversion rate, conversion cost, and revenue rather than judging performance from CPC alone.
Worked Examples
Example 1
A campaign spends $120 and receives 240 clicks. CPC = $120 Γ· 240 = $0.50.
Example 2
A campaign spends $750 for 1,500 clicks. CPC = $0.50 per click.
Example 3
If spending is $1,200 and clicks total 800, CPC = $1,200 Γ· 800 = $1.50.
CPC Examples
| Ad Spend | Clicks | Average CPC |
|---|---|---|
| $100 | 200 | $0.50 |
| $500 | 1,000 | $0.50 |
| $900 | 600 | $1.50 |
CPC and Campaign Performance
A lower CPC is not automatically better. A campaign paying $2 per click can be more valuable than one paying $0.50 if its visitors convert more often or generate more revenue. For that reason, CPC is normally considered alongside click-through rate, conversion rate, cost per acquisition, and return on advertising spend.
Common Mistakes
- Dividing clicks by cost instead of cost by clicks.
- Comparing CPC figures from campaigns with very different goals without context.
- Ignoring conversion quality and looking only for the cheapest clicks.
- Mixing different reporting periods or currencies.
Important
This calculator is for general informational purposes and is not financial, investment, or advertising advice. Actual platform reporting can differ because of attribution, invalid traffic filtering, fees, credits, and reporting rules.