CPM & CPC Calculator
Calculate CPM and CPC from your ad spend, impressions and clicks. Understand what each impression and click really costs across any ad platform.
Two ways to read ad cost
CPM is the cost per thousand impressions, the price of being seen. CPC is the cost per click, the price of a visit. Most ad platforms report both, and each answers a different question. CPM matters for awareness campaigns, while CPC matters when you want traffic and action. This tool gives you both from one set of inputs.
Click-through rate ties them together
The link between CPM and CPC is your click-through rate, the share of impressions that become clicks. A low CPM with a poor click-through rate can still mean expensive clicks. A higher CPM with strong creative can deliver cheaper clicks. Watching all three together stops you judging a campaign on one number alone.
How to use it
Enter your ad spend, the impressions delivered, and the clicks received. The tool returns CPM, CPC and your click-through rate. Use it to compare platforms or creatives on a level field. To judge whether those clicks pay off, follow the funnel with the Conversion Rate Calculator and ROAS Calculator.
Frequently Asked Questions
How do you calculate CPM?
Divide ad spend by impressions, then multiply by 1,000. It gives the cost per thousand impressions.
How do you calculate CPC?
Divide ad spend by the number of clicks. It gives the average cost of one click.
What is click-through rate?
It is clicks divided by impressions, shown as a percent. It measures how often people who see your ad click it.
Is it free?
Yes, free and private.