A PPC conversion rate is your conversions divided by the clicks your ads got, shown as a percentage. Google Ads calls these clicks interactions. Put your clicks in the visitors box and your conversions in the conversions box to get your rate. Add what one conversion is worth and you get the estimated revenue too.
How Google Ads works out conversion rate
Google Ads takes the conversions in a date range and divides them by the ad interactions that could be tracked to a conversion in the same range. Its own example is 50 conversions from 1,000 interactions, a 5% conversion rate. Type 1,000 as visitors and 50 as conversions above and you get the same rate.
Use the Interactions column from your report as visitors. That keeps your rate on the same footing as the one Google Ads shows.
From Google Ads Help's conversion rate definition, read in October 2026.
When your number won't match Google Ads
Google Ads can show a rate over 100%. That happens when you track more than one conversion action, or count every conversion, so one click can bring in several conversions. Copy the same Conversions and Interactions figures from your report into the calculator and the two rates will match.
The calculator doesn't connect to your ad account, so it only knows the numbers you type in. It also doesn't work out cost per conversion or the conversion rate you'd need to hit a target.
This conversion rate calculator is free with no signup. SearchBlueprint, who make it, sell SEO planning for websites: which searches each page should answer.