How do you calculate order fulfillment cost?

Multiply orders by variable cost per order and the allocation share, then add facility overhead. With 6,000 orders at $5.50, 100% allocation and $8,000 overhead: 6,000 x 5.50 x 1.00 + 8,000 = $41,000.

What is the cost per order in the worked example?

$6.83 per order — $41,000 divided by 6,000 orders. The $1.33 gap over the $5.50 variable rate is the fixed overhead spread across the order base.

What is a good order fulfillment cost per order?

For small-parcel DTC, $4 to $8 per order is common excluding freight; the $6.83 result is mid-range. Sub-$4 usually needs high volume or strong automation, while over $10 signals overhead or handling drag.

What is included in variable cost per order?

The touch labor and consumables that scale with each order — picking, packing, box and dunnage, and label. In the example that is $5.50, producing $33,000 of variable cost across 6,000 orders.

How does facility overhead change the per-order number?

The $8,000 overhead is fixed, so it adds $1.33 per order at 6,000 orders but only $0.80 at 10,000 orders. Growing order volume is the fastest way to dilute fixed fulfillment overhead.

Should freight be in this cost?

Not here — this models handling and facility cost, not carrier freight. Add outbound shipping separately, since freight scales with weight, zone, and carrier contract rather than a flat per-order rate.

WMS, Warehouse Labor & Fulfillment calculator

Order Fulfillment Cost Calculator

Order fulfillment cost is the all-in cost to receive, pick, pack, and ship a customer order — the variable per-order handling plus an allocated slice of WMS and facility overhead. Supply-chain and DTC operations leaders live and die by this number because it sets the floor under shipping fees and free-shipping thresholds. When cost per order creeps above your average handling revenue, margin evaporates order by order. This calculator splits the variable and fixed pieces so you can see which lever actually moves your unit economics.

What this calculator does

Estimates the all-in cost to fulfill a batch of orders including variable touch costs and facility overhead.
An operations lead uses it to allocate fulfillment cost across channels for margin reporting.
It computes total fulfillment cost and cost per order from orders, a variable per-order cost, an allocation percentage, and a fixed facility overhead adder.

Formula used

Total fulfillment = orders x variable cost per order x allocation % + facility overhead
Fulfillment cost per order = total fulfillment / orders

Inputs explained

Orders Fulfilled per Period:
Variable Pick-Pack-Ship Cost per Order:
Cost Allocation Share to This Channel:
WMS & Facility Fixed Overhead:

How to use the result

Use it to set shipping fees, model a free-shipping threshold, or compare in-house fulfillment against a 3PL quote.
The allocation share scales the variable cost only; the overhead adder is applied in full regardless of the percentage, so partial-channel costing needs the overhead pre-apportioned.

Current U.S. benchmarks

On-highway diesel averages $4.58 per gallon this week (EIA), trending down over recent periods. Truck tonnage is up 3.4% year over year (ATA via FRED).
Manufacturing hourly earnings average $30.27 (BLS, Jun 2026), up 4.4% from a year earlier. Median machinist pay is $28.24/hr (OEWS 2025), with state medians on each state page. Manufacturers have 529k open positions nationally (BLS JOLTS).

Common questions

How do you calculate order fulfillment cost? Multiply orders by variable cost per order and the allocation share, then add facility overhead. With 6,000 orders at $5.50, 100% allocation and $8,000 overhead: 6,000 x 5.50 x 1.00 + 8,000 = $41,000.
What is the cost per order in the worked example? $6.83 per order — $41,000 divided by 6,000 orders. The $1.33 gap over the $5.50 variable rate is the fixed overhead spread across the order base.
What is a good order fulfillment cost per order? For small-parcel DTC, $4 to $8 per order is common excluding freight; the $6.83 result is mid-range. Sub-$4 usually needs high volume or strong automation, while over $10 signals overhead or handling drag.
What is included in variable cost per order? The touch labor and consumables that scale with each order — picking, packing, box and dunnage, and label. In the example that is $5.50, producing $33,000 of variable cost across 6,000 orders.
How does facility overhead change the per-order number? The $8,000 overhead is fixed, so it adds $1.33 per order at 6,000 orders but only $0.80 at 10,000 orders. Growing order volume is the fastest way to dilute fixed fulfillment overhead.

Last reviewed 2026-05-12.