Calculate the warehouse overhead cost allocated per order including rent, utilities, equipment depreciation, insurance, and staffing spread over monthly orders.
The Warehouse Cost per Order Calculator allocates your total warehouse overhead across your monthly order volume to determine the fixed cost per order. Warehouse overhead includes rent, utilities, insurance, equipment depreciation, IT systems, and non-fulfillment staff — costs that exist regardless of how many orders you ship.
This overhead allocation is critical for accurate per-order profitability analysis. A warehouse with $5,000/month in overhead shipping 500 orders has a $10/order overhead, but at 2,000 orders the overhead drops to $2.50/order. This dramatic scaling effect is why volume growth is so important for in-house fulfillment economics.
Use this calculator to understand your current overhead per order and model how it changes with volume growth. This is also the key comparison metric when evaluating 3PL outsourcing: if your overhead per order exceeds what a 3PL charges, outsourcing becomes attractive. Whether you are a beginner or experienced professional, this free online tool provides instant, reliable results without manual computation.
Warehouse overhead is real money that must be covered by each order. This calculator shows how much fixed cost each order carries and how volume changes affect your per-order economics. Having a precise figure at your fingertips empowers better planning and more confident decisions. Manual calculations are error-prone and time-consuming; this tool delivers verified results in seconds so you can focus on strategy.
Equipment Depreciation/Month = Equipment Value / (Lifespan Years × 12) Total Monthly Overhead = Rent + Utilities + Insurance + Depreciation + Other Overhead per Order = Total Overhead / Monthly Orders
Result: Overhead per order: $2.92
Monthly depreciation: $15,000 / 60 months = $250. Total overhead: $2,500 rent + $350 utilities + $150 insurance + $250 depreciation + $200 other = $3,450. Per order: $3,450 / 1,200 = $2.88. If orders doubled to 2,400/month, overhead would drop to $1.44/order — a 50% decrease per order.
Rent is the dominant cost, typically 60–70% of total overhead. A 2,000 sq ft warehouse in a suburban area costs $1,500–4,000/month. Utilities add $200–500/month (electricity, internet, water). Insurance costs $100–300/month for property and contents coverage. Equipment depreciation adds $100–500/month depending on assets.
Right-size your space: don't lease a 5,000 sq ft warehouse for 1,000 orders/month. Use vertical storage (tall shelving) to maximize cubic footage, not just floor space. Negotiate 3–5 year leases for lower monthly rates. Share space with complementary businesses if you have excess capacity.
When evaluating 3PL outsourcing, compare your total per-order cost (fulfillment labor + materials + shipping + overhead) against the 3PL's per-order quote. Many sellers discover their overhead-loaded self-fulfillment cost exceeds 3PL pricing, especially below 1,000 orders/month.
Warehouse overhead includes all fixed costs that exist regardless of order volume: rent/mortgage, utilities (electricity, water, internet), property insurance, contents insurance, equipment depreciation, security systems, cleaning, IT systems, and management salary allocated to warehouse operations. Keeping this factor in mind will improve the accuracy and usefulness of your overall calculations.
For e-commerce fulfillment, target $1–3 per order in overhead. Above $5/order typically means either the space is underutilized or the volume is too low for the facility size. Compare against 3PL all-in rates to determine if outsourcing would be cheaper.
Warehouse overhead is mostly fixed, so per-order cost is inversely proportional to volume. At 500 orders/month with $3,000 overhead, it's $6.00/order. At 1,500 orders, it's $2.00/order. At 3,000 orders, it's $1.00/order. This is the primary advantage of in-house fulfillment at scale.
Equipment depreciation spreads the cost of assets (shelving, forklifts, packing stations, computers, printers) over their useful life. A $15,000 equipment investment with a 5-year lifespan costs $250/month in depreciation. Include this in your overhead for accurate per-order costing.
The break-even depends on your volume and overhead. If 3PL all-in cost is $10/order and your self-fulfillment cost (including overhead) is $12/order, the 3PL is cheaper. Typically, self-fulfillment becomes cheaper above 2,000–5,000 orders/month when overhead per order drops below $2.
Include management and non-fulfillment salaries (warehouse manager, IT support) in overhead. Direct fulfillment labor (pickers, packers) should be in your labor cost per order, not overhead. This separation lets you see fixed vs variable costs clearly.