Free Shipping Threshold Calculator
Find the cart value where free shipping lifts AOV more than it costs you in margin.
About this tool
Free shipping over X is one of the highest-leverage AOV plays, but only if X is set right. Plug in your average shipping cost, current AOV, margin and an expected uplift rate to see the threshold that's actually profitable, with what-if scenarios.
Why threshold > flat free shipping
Universal free shipping leaks margin on every small order. A threshold ($50, $75, $100) inverts the maths — buyers who'd have ordered one item now add a second to qualify. The threshold is paying for itself with uplift instead of being a subsidy.
Where to set it
Most D2C brands land between 1.3× and 1.5× their current AOV. Set it lower and you give away free shipping without driving uplift; set it higher and shoppers won't try to reach it. A/B test in the 1.3–1.6 range, and watch cart abandonment rate carefully — a sudden spike means you've overshot.
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