3PL vs In-House Fulfillment Cost Calculator
Compare outsourcing to a third-party logistics provider against packing and shipping orders yourself, and see which option costs less at your order volume.
Compare Your Fulfillment Costs
Enter your monthly order volume, your 3PL charges and your in-house costs. The calculator shows total spend, cost per order and the volume at which the cheaper option changes.
Fulfillment Cost Comparison
3PL provider against fulfilling orders in-house.
Choosing Your Fulfillment Model
Key factors behind the 3PL vs in-house decision
Fixed vs Variable Costs
In-house fulfilment carries fixed costs like space and equipment, while a 3PL charges mostly per order. Higher volumes spread fixed costs further.
Shipping Rates
3PLs often secure discounted carrier rates through combined volume. A lower shipping cost per parcel can outweigh their handling fees.
Labour and Your Time
Count the hours you or your team spend packing. Time spent on fulfilment is time not spent on marketing, product development or customer service.
Control and Scalability
In-house gives you full control over branding and quality. A 3PL scales more easily through peak periods without hiring or extra space.
3PL vs In-House Comparison
A general overview of how the two fulfilment models compare across the factors that most affect cost and operations.
| Factor | 3PL Fulfillment | In-House Fulfillment | Typically Favours |
|---|---|---|---|
| Upfront investment | Low, mainly onboarding | Higher, space and equipment | 3PL |
| Cost structure | Mostly per-order and storage fees | Mostly fixed costs plus labour | Depends on volume |
| Shipping rates | Often discounted through bulk volume | Standard or negotiated rates | 3PL |
| Scaling for peaks | Flexible capacity | Needs extra staff and space | 3PL |
| Control and branding | Limited by provider processes | Full control over packing and unboxing | In-house |
| High, steady volume | Per-order fees add up | Fixed costs spread thinly | In-house |
Fulfillment Calculator FAQ
Answers to the most common questions about comparing 3PL and in-house fulfilment costs.
With 3PL fulfilment, a third-party logistics company stores your stock and picks, packs and ships your orders. With in-house fulfilment, you handle storage, packing and dispatch yourself using your own space, staff and equipment.
Add your labour cost per order (minutes spent multiplied by hourly cost), packaging, shipping and your share of fixed costs such as rent, equipment and software, then divide by the number of orders you ship.
A 3PL is often cheaper at lower volumes because you avoid fixed costs like warehouse space and staff. As volume grows, in-house fulfilment can become cheaper because fixed costs are spread across more orders. The break-even volume in this calculator shows where the two lines cross.
Common hidden costs include returns handling, receiving and inbound fees, long-term storage charges, staff holiday and sickness cover, insurance, damaged stock and the time you spend managing operations instead of growing the business.
It uses a single average monthly volume, so it does not model returns or seasonal peaks directly. Use your average figures, then run the calculator again with peak-season volumes to see how the comparison changes.