What Is a Free Shipping Threshold?
A free shipping threshold is the minimum cart value a customer must reach to qualify for free shipping. It exists to do two jobs at once: protect margin by absorbing shipping only on larger orders, and increase AOV by giving shoppers a reason to add one more item before checkout.
The Formula
Starting Threshold ≈ AOV × 1.30, rounded to nearest €5
Minimum Viable Threshold = Shipping Cost ÷ Gross Margin %
If AOV is €48, average shipping cost is €6.50, and gross margin is 40%, minimum viable threshold is 6.50 ÷ 0.40 = €16.25. That number only tells you when shipping stops being mathematically impossible. The behavioral starting point is closer to 48 × 1.30 = €62.40, which rounds to €65.
This is a heuristic, not a calculated optimum. The real optimal depends on what's in the cart, how customers respond to progress messaging, and your shipping cost structure. Start here, then adjust based on whether carts actually lift.
What's a Good Free Shipping Threshold?
| Threshold vs AOV | Cart Effect | Margin Effect | Verdict | |-----------------|-------------|---------------|---------| | Below AOV | Most orders already qualify | Margin erodes fast | Bad | | AOV to AOV +15% | Little behavioral lift for many stores | Usually manageable but weak | Weak | | AOV +20% to +35% | Reachable with one extra item for many customers | Often the best tradeoff | Good | | AOV +50% or more | Customers often abandon instead of adding enough | Margin stays safer, but conversion suffers | Concerning |
These are starting points. The only real test is whether carts actually lift after you set the threshold — adjust based on observed behavior, not this table.
The right threshold is specific to your cart composition and shipping economics. Stores often copy a competitor's number and assume the market has a universal answer. It does not. A beauty store with cheap parcels and high repeat intent can run a very different threshold from a home decor store shipping bulky, fragile products.
Threshold design also changes by region. Domestic and international shipping should almost never share the same free-shipping rule because parcel cost can differ by 2x or 3x. A single threshold across both zones usually means you are either too generous internationally or too strict domestically.
Common Mistakes
- Setting the threshold below AOV. If the average order already clears it, the policy gives away shipping with little or no cart lift.
- Using one number for domestic and international orders. When international shipping costs 2x to 3x more, the same threshold can wipe out contribution margin.
- Never updating as AOV changes. A threshold that worked at €40 AOV often stops creating the right behavior once AOV climbs to €60 or more.
- Copying competitors instead of using your own economics. Two stores can sell similar products with very different shipping profiles and fee structures.
Related Tools
Free Shipping Threshold Calculator estimates a threshold from your average order value, shipping cost, and margin.
Bundle Profit Calculator tests whether adding lower-cost items to help shoppers hit the threshold still leaves enough profit.
Related Terms
After this page, the most useful references are AOV, gross margin, and reorder point for the inventory side of promotion planning.