How to Use
- To calculate CPM, enter Ad Spend and Impressions. For example, spend 500 with 100000 impressions returns a CPM of 5.
- To calculate CPC, enter Ad Spend and Clicks. For example, spend 500 with 2500 clicks returns a CPC of 0.20.
- To calculate CTR, enter Impressions and Clicks. For example, 100000 impressions and 2500 clicks return a 2.5% CTR.
- Click "Load example" to start with an ecommerce campaign, then adjust budget, target CPM, or target CPC to see how many impressions or clicks you can afford.
Core Features
- Paid Media Metric Sync: Enter ad spend, impressions, and clicks in one panel to calculate CPM, CPC, and CTR without switching between separate calculators.
- Reverse Budgeting: Enter your budget with a target CPM to estimate available impressions, or use budget plus target CPC to estimate clicks.
- CPM, CPC, and CTR Together: Compare exposure cost, traffic cost, and click-through rate in the same result view for brand and performance campaigns.
- Universal Ad Metric Formulas: The formulas match standard reported metrics from Google Ads, Meta Ads, TikTok Ads, affiliate campaigns, and ecommerce traffic planning.
- Client-Side Privacy: Campaign budget, impressions, and click data stay in your current browser and are not uploaded or recorded.
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Calculation Logic
This tool uses the core ratio formulas behind common paid media reporting. It is designed for fast campaign planning, creative review, and traffic cost checks.
Core formulas:
CPM is useful for brand reach and exposure cost, CPC is useful for traffic acquisition cost, and CTR helps show whether the ad creative or audience is earning clicks. Real ad platforms can still vary because of auctions, quality scores, competition, and billing rounding. This calculator only performs local math.
FAQ
What is the difference between CPM and CPC?
CPM is the cost per one thousand impressions and is often used for brand reach. CPC is the cost per click and is often used for campaigns focused on traffic and downstream conversion.
How do I calculate CPM from ad spend and impressions?
Use CPM = Ad Spend / Impressions ร 1000. Enter total spend and impressions in the calculator and the CPM result updates automatically.
What is CTR?
CTR means Click-Through Rate. It shows clicks as a percentage of impressions. A higher CTR often means your creative or audience targeting is earning attention, but the real business value still depends on conversions and profit.
Is a high CTR always good?
Not always. A high CTR means people click, but if those clicks do not convert or generate margin, campaign ROI can still be poor. This tool calculates basic ad metrics; it does not guarantee profitability.
Will you save my campaign budget data?
No. All inputs and calculations run locally in your browser. Your ad spend, impressions, and clicks are not uploaded to a server.