Tool · Marketing
CPM, CPC and CPA calculator
Turn a campaign’s spend, impressions, clicks and conversions into the cost metrics ad platforms report.
Purchases, sign-ups or another action you count
CPM (cost per 1,000 impressions)
$5.00
CPC (cost per click)
$0.50
CPA (cost per conversion)
$20.00
Click-through rate
1.00%
Conversion rate
2.50%
How it’s calculated
CPM is spend divided by impressions, times 1,000. CPC is spend divided by clicks, and CPA is spend divided by conversions.
Click-through rate is clicks divided by impressions, and conversion rate is conversions divided by clicks. Leave a box at zero if you do not track it; metrics that need it show a dash.
Worked example
$500 spent for 100,000 impressions, 1,000 clicks and 25 sales is a $5 CPM, $0.50 per click and $20 per sale, with a 1% click-through rate and 2.5% conversion rate.