CPM Calculator
Cost per thousand impressions, solved any way you need it. Enter any two of ad spend, impressions or CPM and the tool finds the third instantly, with a side-by-side budget comparison.
What this budget buys at 3 CPM levels
| CPM level | Impressions |
|---|
This is an estimate. Numbers are currency-agnostic — the tool treats your spend as plain units, so it works with any currency.
How to use
- Choose what you want to solve for: CPM, ad spend or impressions.
- Enter the other two values and the answer appears instantly.
- Read the comparison table to see how your budget stretches at different CPM levels.
Note: CPM = Spend / Impressions x 1000. Impressions = Spend / CPM x 1000. Spend = Impressions / 1000 x CPM.
Tips
- Always compare CPM with quality metrics — very cheap impressions often mean low visibility or irrelevant audiences.
- Use the comparison table before negotiating with a media seller to see what a better CPM is worth in reach.
- For budgeting, work backwards: decide the impressions you need, enter the platform average CPM, and solve for ad spend.
Frequently Asked Questions (FAQ)
How is CPM calculated?
CPM equals ad spend divided by impressions, multiplied by 1000. Rearranged, it can also solve for spend or impressions.
What does the comparison table show?
It shows how many impressions your budget buys at three different CPM levels, so you can compare cheap and expensive placements.
Is a lower CPM always better?
No. Cheap impressions may come from low-quality placements, so compare CPM together with engagement and conversion quality.
Which currency does it use?
None in particular. The tool is currency-agnostic and treats your spend as plain units, so it works with any currency.