Free tools · Paid Media
CPM Calculator
Put in the numbers you already have and get CPM, CPC and CTR back.
Live calculator
Type any two or more values you already know. Everything that can be worked out from them fills in automatically and is marked Auto.
Total ad spend
Times your ad is shown
Total clicks
Cost per 1,000 impressions
Cost per click
Click-through rate
Reading
Enter at least two values you know - the rest are calculated automatically.
CPM = spend / impressions × 1,000 • CPC = spend / clicks • CTR = clicks / impressions × 100. Currency is a label only, with no conversion applied.
FAQ
CPM Calculator, answered.
How do you calculate CPM?
CPM means cost per thousand views of your ad. Divide what you spent by the number of impressions, then multiply by 1,000. Spend 500 for 250,000 impressions and the CPM is 2. This tool also runs backwards, from a target CPM to the budget it needs.
What is the CPM formula?
The formula is (cost / impressions) x 1000. The x 1000 is the useful bit. The cost of one single impression has too many zeros to compare at a glance, so everyone quotes it per thousand instead.
Is a 20 CPM high?
It depends on the platform and how narrow the audience is. Broad awareness inventory can sit in the low single figures. A tight B2B audience on LinkedIn can pass 100. Judge it against your own account history from the same quarter last year.
How do CPM, CPC and CTR relate to each other?
They are three views of the same numbers: CPC = CPM / (CTR x 10), with CTR as a percentage. Lift your click-through rate and your cost per click falls even if the CPM never moves. That is why this tool solves all three at once.
Where this stops being a calculator
Your ad account and your analytics will disagree about what a campaign spent and what it earned. We find the gap, close it, and put both numbers on one dashboard.
Two marketers. Your whole account.
Book a call and tell us what you want to grow, or get the free website report first.