Ecommerce
What is AOS?
Average Order Size
DEFINITION
Average Order Size (AOS) is the number of items per order. Different from AOV which measures dollar value.
FORMULA
AOS = Total items sold ÷ Total ordersINDUSTRY BENCHMARKS
Fashion: 1.8-2.5 · Beauty: 2.0-3.0 · Food/grocery: 5-15 · Supplements: 1.2-2.0
Why AOS matters
AOS improvements lower shipping costs per item and improve cart economics. Bundles, BOGO, and volume discounts all raise AOS.
Common questions about AOS
What is AOS?▾
Average Order Size (AOS) is the number of items per order. Different from AOV which measures dollar value.
How is AOS calculated?▾
AOS = Total items sold ÷ Total orders
What is a good AOS?▾
Fashion: 1.8-2.5 · Beauty: 2.0-3.0 · Food/grocery: 5-15 · Supplements: 1.2-2.0
Related terms
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