Free Shipping Threshold Calculator

How this is calculated

Free shipping is not a marketing cost, it is a margin cost — you absorb the shipping fee out of gross profit. For the offer to pay for itself, the extra margin from larger orders has to exceed the shipping you now cover.

That gives a clean break-even: your order value has to rise by your shipping cost divided by your gross margin rate. At $8 shipping and a 45% margin, orders must grow by about $17.78, because you only keep 45 cents of each extra dollar.

Set the threshold at or slightly above that break-even value. Set it too close to your current average and most customers qualify without changing behaviour, so you absorb shipping on orders you would have won anyway. Set it far too high and shoppers ignore it.

Questions merchants ask

How high should my free shipping threshold be?

At or just above the break-even order value shown here, which is typically 20% to 40% above your current average order value. The threshold has to be reachable enough that customers add an item, but high enough that reaching it actually pays for the shipping.

Does free shipping really increase order value?

It usually does, but the size of the lift varies a great deal by category and price point. Rather than trusting a benchmark, run it for a few weeks and measure your own AOV change, then come back and enter the real figure.

Should I raise prices to cover free shipping instead?

Building shipping into product prices removes the threshold mechanic entirely and can hurt conversion on price-sensitive listings. Many stores do both: modest price increases plus a threshold that encourages larger baskets.

What about heavy or oversized items?

Exclude them, or set separate thresholds. Averaging a $30 freight item in with $6 parcels produces a threshold that is wrong for both.