CPC CPM CPA Calculator
The three cost metrics from one campaign, with the funnel rates that connect them. Improving cost per acquisition is usually a conversion-rate problem rather than a bidding one, and this shows which.
Also called: cpc calculator, cpm calculator, cost per acquisition.
$400.00 per conversion. Cost per click is $20.00 and cost per thousand impressions is $200.00. The funnel runs 1% click-through and 5% conversion.
An estimate, not an offer or a guarantee. Projected returns assume the rate you entered holds for the whole term, which no market does.
How this is calculated
All three divide the same spend by a different denominator, so they move together and mean different things. Cost per click is a bidding outcome. Cost per acquisition is a business outcome, and the gap between them is the conversion rate. A campaign with a good cost per click and a poor cost per acquisition has a landing-page problem rather than an auction problem, which is the diagnosis this layout is for.
each is spend divided by the count it is named after; CPM multiplies by a thousand- S
- Ad spend (currency)
- i
- Impressions (count)
- c
- Clicks (count)
- a
- Conversions (count)
Method and limits
What it assumes
- Conversions are attributed to this spend within the reporting window.
What it deliberately does not model
- Attribution across channels and devices is the hard part and is assumed away here.
- It counts the last click. View-through and assisted conversions are excluded.
Formula version 1.0.0 · definition 1.0.0 · United States · Report a problem with this calculator
Frequently asked questions
- My cost per click is fine but acquisition is expensive. What now?
- The conversion rate is doing the damage. Halving the cost per click is hard; doubling the landing page conversion rate is often easier and has the same effect on acquisition cost.