Free Shipping Threshold Calculator

See whether offering free shipping over a threshold actually lifts profit, once you factor in absorbed shipping costs and higher AOV.

Current state

Proposed threshold

Typical lift when adding a threshold is 15-30%. Higher for categories with easy add-ons.

Financial impact

Monthly net impact

$5280.00

Threshold likely worth it.

Current monthly revenue$24000.00
Projected revenue$29280.00
Revenue lift+$5280.00
Shipping absorbed-$1800.00
Orders qualifying225 / 500

How to pick the right free shipping threshold

Start with your current AOV

The threshold needs to be 30-40% above your current AOV to drive meaningful behavior change. Too close and you absorb shipping without the lift. Too far and shoppers give up.

Estimate the AOV lift

Industry data shows 15-30% AOV lift when adding a threshold for the first time. Categories with easy add-ons (beauty, supplements, snacks) trend higher. Big-ticket items trend lower.

Track qualifying percentage

What share of orders hit the threshold? 30-50% is typical when set well. Below 20% means the threshold is too high. Above 70% means it was already close to AOV and you're leaving money on the table.

Free shipping math, in plain English

Free shipping is a lever, not a law. The math only works if the AOV lift outweighs absorbed cost.

The threshold drives behavior

When shoppers see 'Free shipping over $75' and their cart is at $65, they'll add a $12 item to qualify. That's the mechanism. The closer your threshold is to where shoppers naturally sit, the less behavior change you trigger.

Not all absorbed shipping costs the same

If you ship with USPS Ground at $5 per order, absorbing shipping is cheap. If you're shipping heavy/bulky items at $15+, the math gets tight. Lightweight categories have the most room to offer free shipping.

Display the threshold prominently

Announcement bar, free-shipping progress indicator in the cart, countdown to qualify. The lift disappears if shoppers don't know the rule exists. Shopify apps like Free Shipping Bar (Hextom) make this trivial to add.

Test the threshold quarterly

Set the threshold, run for 30 days, check your actual AOV lift and qualifying percentage in the calculator. If the net impact isn't positive, adjust. Most stores settle on a threshold after 2-3 iterations.

Free shipping competes with premium positioning

If your brand positions on quality and craft, bundling shipping into the price (flat premium shipping, no threshold) can feel more consistent than discount-style free shipping thresholds. Luxury brands rarely use them.

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FAQs

Common questions about free shipping thresholds.

30-40% above your current AOV. If AOV is $50, try $65-75. High enough to drive behavior change, low enough that shoppers can reach it with one extra item. Test and adjust quarterly.
Yes. Studies show conversion rates 20-30% higher for stores offering free shipping (threshold or otherwise). The effect is stronger on first-time buyers. For repeat customers, it matters less once they've built trust.
Site-wide announcement bar, free-shipping progress bar in the cart ("Add $12 more for free shipping"), and a mention on product pages near the buy button. Silent thresholds get no lift.
Only if your margins are high enough to absorb the cost on every order. For most stores, a threshold is more profitable. Sitewide free shipping works for premium brands baking it into the price and for heavy-ad-spend DTC brands treating it as acquisition cost.
Yes. Most ecommerce platforms let you set thresholds per shipping zone. International shipping is expensive, so thresholds often double for overseas orders ($75 domestic, $150 international).