Useful maths. Less admin.
Everyday calculators for media planning, buying and reporting. Free to use. No signup. Keep this page close when the numbers need checking.
CPM calculator
Enter any two values. The missing budget, CPM or impressions updates automatically.
Edit any field to use it as an input. The other most recently edited value is kept, and the third is recalculated. Clear a field to change what you know.
Enter two values to calculate the third.
Budget, CPM and impressions are connected: budget = CPM × impressions ÷ 1,000.
Calculations run in your browser. Your inputs are not submitted or stored.
Use comparable reporting periods, definitions and cost bases. Results exclude VAT, fees and markups unless included in the spend you enter. Budget pacing assumes even delivery; review it against your planned flight.