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Impression Calculator

How many ad impressions a budget buys at a given CPM, and expected clicks at your CTR.

Also known as impressions from budget, ad impressions, reach from cpm.

Enter values

Results update as you type.

Result

Impressions

125,000

Expected clicks
1,500
Effective CPC
$0.67

About the Impression Calculator

How many ad impressions a budget buys at a given CPM, and expected clicks at your CTR.

Also known as: impressions from budget, ad impressions, reach from cpm.

How to use this calculator

  1. Enter budget, cpm, ctr.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Impression formula

Impressions = budget ÷ CPM × 1000

Worked example

Using the values pre-filled in the calculator above:

  • Budget = 1,000
  • CPM = 8
  • CTR = 1.2 %

the calculator returns:

  • Impressions: 125,000
  • Expected clicks: 1,500
  • Effective CPC: 0.67