Conversion rate is calculated as: (conversions / visitors) x 100. It is one of the most important performance metrics, showing how effectively you turn traffic into results. Average conversion rates vary by industry: eCommerce 2-3%, SaaS 5-7%, real estate 3-5%.
Your site gets 10,000 visitors per month and generates 300 orders. Conversion rate is 3%. After optimizing product pages and checkout, it rises to 4.5% — 150 extra orders with no additional traffic.