Free reporting calculators
Period comparison calculator: percent change and percentage points
Compare a Google Ads metric across two periods. Get the absolute change, the percent change and, for rates, the change in percentage points.
Google Ads metric calculator: CTR, CPC, CPA and ROAS
Enter spend, impressions, clicks, conversions and conversion value to get CTR, average CPC, cost per conversion and ROAS, with the formulas shown.