Fulfillment Cost Calculator accuracy and testing

Formula source

• Total fulfillment cost = receiving cost + storage cost + pick and pack cost + shipping cost + software fees. Fulfillment cost per order = total fulfillment cost / orders.

Test cases

Known limitations

• These calculators do not forecast demand automatically, fetch live provider rates, optimize warehouse layout, model taxes, or replace review of your contracts, carrier invoices, WMS data, accounting policies, or operations plan.

Assumptions

• All demand, service, storage, labor, packaging, shipping, software, and handling values are user-entered assumptions.
• No current carrier rates, 3PL fee cards, marketplace rules, or provider-specific costs are hardcoded.
• Results are deterministic planning estimates and are not operations, accounting, tax, legal, or carrier-contract advice.
• Calculations run locally in the browser without uploading private inventory, customer, order, or warehouse data.

Unit handling

• Orders Fulfilled accepts values in orders.
• Receiving Cost accepts values in $.
• Storage Cost accepts values in $.
• Pick and Pack Cost accepts values in $.
• Shipping Cost accepts values in $.
• Software Fees accepts values in $.
• Total Fulfillment Cost is displayed as currency.
• Fulfillment Cost per Order is displayed as currency.
• Warehouse Cost Before Shipping is displayed as currency.

Rounding rules

• Number displays use up to 2 decimal places in the calculator UI.
• Currency outputs are displayed with standard US dollar formatting.
• Input precision follows configured step values where provided.

Version history

Change log