AOV (Average Order Value)

What is AOV?

AOV is the average revenue per order (total revenue ÷ number of orders), and in health it is the quiet anchor on everything downstream, because it sets how much CAC a brand can profitably afford before a single rebill arrives.

The formula and a worked example

AOV = total revenue ÷ number of orders. Work an example with round, illustrative numbers. A supplement store books $30,000 across 500 orders, so AOV is $60. Add a one-click 90-day supply that half the buyers take at $150 and total revenue climbs while order count barely moves, pulling AOV up toward $95, and every dollar of that lift widens the gap between what an order is worth and what it cost to acquire.

The decision rule: AOV × gross margin vs CAC

AOV only means something next to margin and acquisition cost. The rule is first-order profit = AOV × gross margin, judged against CAC. A $60 supplement order at 60% gross margin leaves $36 of first-order profit against a $40–110 blended CAC band (illustrative, across AdBoost Health partner accounts), so the first order frequently does not pay for itself and the model has to be underwritten by rebills. Raise the same order to $95 and first-order profit becomes about $57, which can flip a break-even acquisition into a profitable one with no change to the ad account.

Why AOV ranges so widely in health

Order value spans orders of magnitude across health, which is why a CAC that is fatal in one vertical is rational in another:

The same $500 CAC is a disaster against a $60 supplement order and easy math against an IVF cycle, so AOV is what makes any CAC benchmark meaningful in the first place.

Why it matters for health and DTC brands

Raising AOV is often the cheapest CAC “cut” available, because it lifts the affordability ceiling without touching media buying, usually the most expensive and least controllable lever. Bundles, 90-day supplies, and prepaid multi-month plans all pull future revenue into the first transaction, shortening CAC payback and lifting LTV at the same time. Just build the math on gross profit, not the headline order value, since a higher AOV on a thin-margin bundle can raise revenue while barely moving the contribution margin that actually repays acquisition. See how a higher order value flows through to affordable acquisition cost with the CAC calculator.

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