Calculate conversion rate, cost per conversion, and return on ad spend from your visitor and conversion numbers.
Conversion rate measures how effectively your traffic turns into desired actions — purchases, sign-ups, or leads. Combined with your ad spend and the revenue each conversion generates, you can see your cost per conversion and your return on ad spend (ROAS) at a glance.
Conversion Rate = (Conversions ÷ Visitors) × 100
Cost per Conversion = Ad Spend ÷ Conversions
Total Revenue = Conversions × Revenue per Conversion
ROAS = Total Revenue ÷ Ad Spend
Enter your total visitors or impressions, the number of conversions they produced, the average revenue each conversion is worth, and your total ad spend for the period. The calculator returns your conversion rate alongside cost and revenue metrics.
A campaign with 10,000 visitors, 250 conversions at $40 each, and $3,000 in ad spend has a 2.5% conversion rate, costs $12 per conversion, generates $10,000 in revenue, and returns a 3.33x ROAS.
Conversion rate = (number of conversions divided by total visitors or sessions) x 100.
It depends on your goal — a completed purchase, form submission, sign-up, or any other target action you define for tracking purposes.
It varies widely by industry and traffic source — e-commerce sites often see 1-4%, while dedicated landing pages for specific offers can be much higher.