🖱️ CPC & CTR Calculator

The CPC & CTR Calculator works out cost per click and, if you provide impressions, the click-through rate for a pay-per-click campaign. Together these two numbers tell you how efficiently your budget turns into traffic and how compelling your ad is to the people who see it.

How to Use This Tool

Enter total spend and the number of clicks to get CPC. Add impressions to also get the click-through rate (CTR). Any blank optional field is simply skipped.

What This Tool Checks

CPC = spend ÷ clicks; CTR = clicks ÷ impressions × 100. Exact arithmetic performed in your browser.

Understanding Your Results

CPC is what each visitor costs you. CTR measures how often people who see the ad click it — a low CTR usually points to weak targeting or a weak ad, while a high CTR with poor conversions points to a landing-page problem instead.

How to Fix Common Problems

If CPC looks wrong, confirm spend and clicks are for the same period and campaign. CTR needs impressions in raw numbers. A CTR above 100% means clicks exceed impressions, which indicates a data error.

SEO Best Practices

Track CPC alongside conversion rate — cheap clicks that never convert are expensive in the end. Improve CTR with tighter targeting and clearer ad copy; improve cost-per-conversion by fixing the landing page, not just chasing a lower CPC.

Example

$300 of spend for 600 clicks is a $0.50 CPC. If those clicks came from 40,000 impressions, the CTR is 1.5%.

Common Mistakes to Avoid

Judging a campaign on CPC alone ignores whether the traffic converts. Mixing spend from one period with clicks from another produces a meaningless CPC.