How CPC ROI and CPM Worksheets Work
Transparent ad-unit math without auction theater

How CPC ROI and CPM Worksheets Work
Marketers often jump between CPC and CPM reports without rewriting the underlying story: unit price × volume = spend. ROI worksheets then layer conversion rate and revenue so you can see whether the plan clears a return hurdle before you scale bids.
CPC ROI path
Spend = clicks × average CPC. Conversions = clicks × conversion rate. Revenue = conversions × revenue per conversion. Profit subtracts spend and any variable cost per conversion you enter. ROI and ROAS are just different ratios of those totals.
Model CPC campaign returns
Enter clicks, CPC, conversion rate, and revenue assumptions:
CPC ROI CalculatorCPM path
Spend = (impressions ÷ 1000) × CPM. If you only have impressions and an assumed CTR, convert to clicks first, then reuse the same conversion math. Keep CPM and CPC scenarios labeled so you do not mix impression and click denominators.