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Calculator

CPM Calculator

Calculate cost per thousand impressions, reverse a target CPM into budget, or estimate how many impressions your spend can buy.

Interactive area

CPM workspace

Choose what to solve for, enter the other two values, then press Calculate for CPM, cost, or impressions.

Marketing calculator

Calculate CPM, cost, or impressions

Solve for

CPM formula

CPM = (Cost ÷ Impressions) × 1,000

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Details

Information

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What CPM means

CPM (cost per mille) is the price you pay for 1,000 ad impressions. It is the standard way to compare media costs across Meta, Google, programmatic, and publisher inventory.

Solve for CPM, cost, or impressions

Enter any two values and calculate the third — find CPM from spend and delivery, estimate budget from a target CPM, or reverse-engineer how many impressions a budget can buy.

Simple industry formula

CPM = (Ad spend ÷ Impressions) × 1,000. Cost and impressions modes rearrange the same equation so you can plan campaigns quickly.

Multi-currency display

Pick USD, EUR, GBP, INR, AUD, or CAD for labels and result formatting. The math is currency-agnostic — use whatever unit your ad account reports.

FAQ

Frequently asked questions

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A CPM calculator converts between ad spend, impressions, and cost per thousand impressions so you can price media, check platform reports, or forecast delivery.

Divide total ad cost by impressions, then multiply by 1,000: CPM = (Cost ÷ Impressions) × 1,000. Example: $500 spend on 100,000 impressions is a $5.00 CPM.

It varies by channel, geo, placement, and audience. Social and display often land in single to low double digits in many markets, while niche or competitive verticals run higher. Compare against your own historical benchmarks.

No. CPM prices impressions, CPC prices clicks, and CPA prices conversions. Use CPM to judge media efficiency; use CPC/CPA to judge response and outcomes.

Yes. Switch to Cost mode, enter your target CPM and expected impressions, then calculate the required ad spend.

Yes. As long as you have spend and impression totals (or a quoted CPM), the same formula applies across major ad platforms.

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