REVERSE-PLAN YOUR MEDIA SPEND
Find the budget required to buy a target number of ad impressions at your target CPM. Start with the numbers you already know.
Enter a target CPM and the number of impressions you want to buy.
Budget needed for 100,000 impressions at a $5.00 CPM.
$5.00 × 100,000 ÷ 1,000THE QUICK ANSWER
Required budget = target impressions ÷ 1,000 × target CPM
For example, 100,000 impressions at a $5 CPM requires an estimated $500 budget. This is a planning calculation, not a platform quote.
Start with the reach you want to buy and the CPM you are willing to pay. Divide impressions by 1,000, then multiply by the target CPM. Add a testing reserve when you launch a new campaign because real auction prices change by audience, placement, season and creative quality.
A practical first plan is to keep most of the budget for the leading channel and reserve 15% to 20% for testing another channel, audience or creative. Once actual CPM, click-through rate and conversion quality are available, move spend toward the combination that is producing useful business results.
The same impression target can require very different budgets on Meta, Google Display, YouTube, TikTok or LinkedIn. Use the AI campaign planner to compare planning assumptions, platform fit and trade-offs rather than choosing a channel only because its CPM looks cheapest.
A useful launch plan separates the amount needed to reach the goal from the amount needed to learn. For example, if the formula returns $5,000, reserve 15% to 20% for testing creative, audience or placement before moving the remaining spend toward the strongest result. Record the actual CPM and delivery pace so the next budget uses evidence instead of a generic assumption.
This calculator estimates media spend only. Add production, management, platform fees, taxes and any minimum spend requirements before approving the total campaign budget. If the target is a unique-reach goal rather than an impression goal, add a frequency assumption because repeated impressions can consume budget without increasing unique reach at the same rate.
NEXT, COMPARE THE NUMBERS
CPM only explains the cost of delivery. Read CPM vs CPC vs CPA to choose the metric that matches your objective, or use the cost per impression calculator to view the same delivery cost at an individual-impression scale.
You need a target number of impressions and a target CPM. If you do not know the CPM, use a small test and replace the planning assumption with your actual campaign CPM.
No. It estimates media spend from CPM and impressions. Add agency fees, creative production, taxes and platform-specific charges separately.
Not usually. CPM varies across platforms and objectives. Compare each channel with its own planning assumption and evaluate clicks or conversions as well as impressions.