Calculators
About the CPM Calculator
The CPM Calculator is a free online calculator from Toolbench. Solve for CPM, total cost or impressions. Enter your numbers and the answer — with the formula used — updates as you type.
- Category
- Calculators
- Price
- Free
- Account
- Not required
- Runs
- Entirely in your browser
How to use the CPM Calculator
- Enter the values (solve for, total cost, cpm (cost per 1,000), impressions).
- Read the result — it updates as you type.
- Check the breakdown rows to see exactly how it was calculated.
Worked example
| Solve for | CPM |
|---|---|
| Total cost | 500 |
| CPM (cost per 1,000) | 12.5 |
| Impressions | 40000 |
| CPM | 12.50 |
| CPM | 12.50 |
| Total cost | 500.00 |
| Impressions | 40,000 |
| Cost per impression | 0.0125 |
Formula: CPM = cost ÷ impressions × 1,000. Cost = CPM × impressions ÷ 1,000. Impressions = cost ÷ CPM × 1,000.
Inputs
| Solve for | CPM · Total cost · Impressions |
|---|---|
| Total cost | Default: 500 |
| CPM (cost per 1,000) | Default: 12.5 |
| Impressions | Default: 40000 |
Privacy
Everything runs in your browser: what you type or paste is processed by JavaScript on your device, not on a server. If you are signed out, nothing is saved at all. If you sign in with Google, your inputs and settings are saved privately to your account so they sync across devices.
Frequently asked questions
Is the CPM Calculator free?
Yes. CPM Calculator is completely free with no sign-up, no usage limits and no watermarks.
Is my data private?
Yes. The CPM Calculator processes everything in your browser. Signed out, nothing is saved; signed in, your inputs sync privately to your own account.
How does the cpm calculation work?
CPM = cost ÷ impressions × 1,000. Cost = CPM × impressions ÷ 1,000. Impressions = cost ÷ CPM × 1,000.
Does it work on my phone?
Yes. Toolbench runs in any modern browser on desktop, tablet or phone — there is nothing to install.
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