How to Calculate Ecommerce Conversion?
Updated April 8, 2026 3 min read
How to Calculate Ecommerce Conversion?
Ecommerce conversion rate = (completed transactions divided by total sessions) multiplied by 100. A store with 8,000 sessions and 160 orders has a 2% conversion rate. Always calculate it separately for each traffic source and device type. A 2% blended rate can hide a strong desktop rate alongside a weak mobile rate. Those two numbers have different root causes and need different fixes.