CPM Calculator
Cost per 1,000 impressions from spend and impressions.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Need CPM fast? Marketers and media buyers use the CPM Calculator to skip the spreadsheet and get a reliable answer in one step. It's 100% free, runs privately in your browser, and the result is ready to drop into a pitch, plan or report.
About CPM Calculator
Need to work out CPM fast? CPM (cost per mille) is the cost of 1,000 ad impressions. The CPM Calculator uses the standard formula — CPM = (Total Spend ÷ Impressions) × 1,000 — and updates the moment you type. For example, $300 spent on 60,000 impressions is a $5 CPM. It's 100% free, private (your numbers never leave your device) and works on any device.
How to use CPM Calculator
- 1Enter your total spend and number of impressions into the calculator.
- 2The CPM is computed automatically using the formula CPM = (Total Spend ÷ Impressions) × 1,000 — there's no button to press.
- 3Change any input to model a different scenario, then note or copy the result.
Why use CPM Calculator?
- ✓Calculates CPM instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the numbers you enter stay private
- ✓Updates live as you type — perfect for comparing scenarios
Frequently asked questions
How do you calculate CPM?+
CPM (cost per mille) is the cost of 1,000 ad impressions. The formula is: CPM = (Total Spend ÷ Impressions) × 1,000. For example, $300 spent on 60,000 impressions is a $5 CPM.
Is a lower CPM always better?+
Not necessarily — a higher CPM on a precisely targeted, high-intent audience can outperform cheap, broad impressions.
Is the CPM Calculator free to use?+
Yes — it's completely free, with no sign-up, no login and no usage limits. You can run it as many times as you like.
Is my data private?+
Yes. The CPM Calculator runs entirely in your browser, so the figures you enter are never uploaded or stored on any server.
Embed CPM Calculator on your website
Want CPM Calculatoron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
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