How do I choose a free shipping threshold?

Set it at or above your break-even threshold (AOV plus shipping cost divided by margin percentage) and within roughly 1.2–1.5 times your current AOV so customers can realistically reach it. Then A/B test: the right threshold lifts AOV and conversion enough that the absorbed shipping pays for itself.

Why not just offer free shipping on everything?

Unconditional free shipping absorbs the full shipping cost on every order, including small baskets where it can exceed the entire order margin. A threshold converts the same subsidy into an incentive: customers add items to qualify, raising AOV, while low-value orders still contribute shipping revenue.

What margin should I use in the calculation?

Use gross margin on product revenue — revenue minus cost of goods — before shipping and fulfillment costs, since those are what the offer changes. If your margin varies widely by category, run the calculator per category; a 70%-margin accessory line supports a much lower threshold than 25%-margin electronics.

Ecommerce & Fulfillment

Free Shipping Threshold Calculator

The Free Shipping Threshold Calculator finds the minimum-order value at which offering free shipping protects your profit: it shows how much margin each free-shipping order absorbs, the order-value uplift needed to pay for the shipping you give away, and a recommended threshold range based on your average order value and gross margin.

Input Parameters

Average Order Value ($)

Average Shipping Cost per Order ($)

Carrier cost plus packaging for a typical order

Gross Margin (%)

Proposed Threshold ($, optional)

Results

Enter values to see results

Formula

Break-Even Threshold = AOV + (Shipping Cost ÷ Gross Margin %) · Margin Absorbed per Order = Shipping Cost ÷ (Threshold × Margin %)

When a customer adds items to reach your threshold, the incremental revenue above your current average order value (AOV) earns your gross margin percentage. Free shipping breaks even when that incremental margin covers the shipping cost you now absorb: (Threshold − AOV) × Margin % ≥ Shipping Cost. Below that point every qualifying order gives back margin; above it, the uplift funds the shipping and more.

Variable Definitions

AOV

Average Order Value

Your current average order value before the free-shipping offer.

Ship

Average Shipping Cost

What an average outbound shipment actually costs you (carrier + packaging).

Margin %

Gross Margin

Gross margin percentage on product revenue, before shipping costs.

Proposed Threshold

The minimum order value you are considering for free shipping.

Example Calculation

Scenario: A DTC brand considers free shipping over $75: - Current AOV: $55 · Average shipping cost: $8.50 · Gross margin: 45% Calculation: Break-even threshold = $55 + ($8.50 ÷ 0.45) = $55 + $18.89 = $73.89 At a $75 threshold: Margin per qualifying order = $75 × 45% = $33.75 Shipping absorbs $8.50 ÷ $33.75 = 25.2% of that margin Required uplift vs AOV = $18.89; actual uplift at threshold = $20.00 ✓ $75 clears break-even. The common practice range of 1.2–1.5× AOV ($66–$83) brackets it, so $75 is a defensible choice to A/B test.

How to Interpret Your Result

• A threshold below the break-even level loses margin on every qualifying order unless it wins genuinely new orders — measure conversion lift before keeping it. • Thresholds far above 1.5× AOV push too hard: most carts abandon rather than double their basket, and the offer stops influencing behavior. • Watch the margin absorbed figure: above ~30% of order margin, free shipping is one of your largest cost lines and deserves testing against flat-rate shipping. • Recompute after rate increases and seasonal AOV shifts — a threshold set two years ago is rarely still optimal.

Related Calculators

Related Glossary Terms

Break-Even Analysis Order Fulfillment Last-Mile Delivery