Bolt Ads · Free tools

CPM Calculator

Cost per 1,000 impressions from spend and impressions, or solve for either one.

How it's calculated

• CPM = ad spend ÷ impressions × 1,000
• Ad spend = CPM × impressions ÷ 1,000
• Impressions = ad spend ÷ CPM × 1,000

FAQ

What does CPM mean?

Cost per mille: what you pay for 1,000 impressions. It is the price of reach, before anyone clicks.

What is a good CPM on Facebook and Instagram?

It changes with country, audience, placement and season. Compare with your own past CPMs, not with a benchmark.

How many impressions will my budget buy?

Solve for impressions, then enter your budget and CPM. A budget of 500 at a CPM of 10 buys 50,000 impressions.

How do CPM and CPC relate?

CPC = CPM ÷ (10 × CTR), with CTR in percent. A CPM of 10 with a 1% CTR gives a CPC of 1.

More free tools

• ROAS calculator: Return on ad spend
• Break-even ROAS: Where ads stop losing money
• CPA calculator: Cost per conversion
• CTR calculator: Clicks per impression
• A/B test calculator: Is the winner real?