Average Order Value (AOV) measures the mean revenue generated per transaction.
Why AOV Is the Highest-ROI Metric to Improve
Customer Acquisition Cost (CAC) is fixed once a visitor arrives at your site. AOV determines how much revenue that acquisition generates. Improving AOV by 20% increases revenue by 20% without spending an extra dollar on marketing.
Contrast this with doubling traffic: same 20% revenue increase, but traffic costs money. AOV improvements are free.
AOV, Conversion Rate, and Revenue per Visitor
This is why optimizing for RPV (Revenue per Visitor) captures both dimensions simultaneously. A high-AOV, low-traffic store can outperform a high-traffic, low-AOV store on total revenue.
Calculating AOV by Segment
Total AOV blends all customer cohorts. Segment by: - Channel: Organic vs paid vs email — each typically shows a different AOV - New vs returning customers: Returning customers average 30–50% higher AOV in most stores - Product category: Different categories drive radically different order sizes