Cross‑Border Logistics Cost Breakdown: From FOB to FBA
Published: May 15, 2026 | Reading time: ~9 min
For newcomers to cross‑border e‑commerce, logistics costs are often the most underestimated piece of the puzzle. "$5 factory price, $19.99 selling price, $14.99 profit" — this naive calculation crumbles against reality. From a Shenzhen factory to an Amazon warehouse in the U.S., a single product incurs at least nine separate fees: domestic freight, port charges, customs clearance, ocean freight, insurance, destination port fees, import duties, and last‑mile trucking. This article uses a Bluetooth speaker as a case study, breaking down the entire logistics chain item by item.
Bottom line: A $5 Bluetooth speaker incurs ~$5.4-$7.5 in logistics costs (sea freight) from Shenzhen to an Amazon U.S. warehouse — 108%-150% of the factory price. By air, logistics can reach $12-$18/unit. Use our FOB/CIF Calculator to estimate port‑to‑port sea freight, then plug the full cost into our FBA Profit Calculator for a complete unit profit analysis.
1. The Full Logistics Chain at a Glance
From Shenzhen factory to Amazon FBA warehouse, the product passes six key nodes:
Logistics Chain in Six Steps
Factory (EXW) → China Port (FOB) → Ocean Freight → U.S. Port (CIF) → Customs Clearance → Amazon Warehouse (FBA)
2. Stage 1: Factory to Vessel (EXW → FOB)
All costs in this stage are incurred within China. Assumptions: Bluetooth speaker at $5/unit EXW, first batch of 1,000 units in a 20GP container.
| Cost Item | Total (USD) | Per Unit | Notes |
|---|
| Factory Price (EXW) | $5,000 | $5.00 | Factory quote, no transport included |
| Domestic Freight | $350-$500 | $0.35-$0.50 | Shenzhen factory to Shenzhen port, short distance |
| Port Charges (THC+Booking+Docs) | $200-$350 | $0.20-$0.35 | Terminal handling, booking, documentation |
| Customs Clearance Fee | $50-$80 | $0.05-$0.08 | Export customs brokerage |
| FOB Total | $5,600-$5,930 | $5.60-$5.93 | All costs before loading onto vessel |
Key point: Most Chinese factories quote FOB (including domestic freight and port charges), not EXW. Always confirm the Incoterm when requesting a quote.
3. Stage 2: Ocean Freight + Insurance (FOB → CIF)
From Shenzhen to Los Angeles, a 20GP container costs ~$1,800-$2,500 in ocean freight. Insurance is typically 0.15%-0.3% of the cargo value.
Ocean Freight Segment
Ocean Freight: 20GP $1,800-$2,500 ÷ 1,000 units = $1.80-$2.50/unit
Insurance: (FOB value × 1.002) × 0.2% ≈ $5,600 × 0.2% = $11.2 ÷ 1,000 units ≈ $0.01/unit
CIF total ≈ $7.41-$8.44/unit
4. Stage 3: Destination Port to FBA Warehouse (CIF → FBA)
| Cost Item | Total (USD) | Per Unit | Notes |
|---|
| Destination Port Charges | $200-$350 | $0.20-$0.35 | Unloading, documentation at LA port |
| U.S. Customs Duty | $0-$375 | $0-$0.38 | Bluetooth speakers HTSUS rate ~0%-7.5% |
| Last‑Mile Trucking | $600-$900 | $0.60-$0.90 | LA port → Amazon ONT8 warehouse |
| Destination Total | $800-$1,625 | $0.80-$1.63 | |
Customs duty note: Bluetooth speakers under the 2026 HTSUS generally fall under 0%-7.5% duty, depending on the exact classification. Products subject to Section 301 tariffs may face additional duties. Always confirm the correct HTS code with your customs broker before shipping.
5. Total Logistics Cost Summary
Bluetooth Speaker Full Logistics Cost (1,000 units, Shenzhen→LA→ONT8)
EXW: $5.00/unit
Domestic Freight + Port Charges + Customs: $0.60-$0.93/unit
Ocean Freight: $1.80-$2.50/unit
Insurance: ≈$0.01/unit
Destination Port: $0.20-$0.35/unit
Customs Duty (5%): $0.25/unit
Last‑Mile Trucking: $0.60-$0.90/unit
─────────────────
Total Logistics: $3.46-$4.94/unit
Full Supply Chain Cost (incl. EXW): $8.46-$9.94/unit
* Logistics costs represent 69%-99% of the factory price, and 41%-50% of the total supply chain cost
Adding FBA fees (~$3.22/unit) and Amazon referral fees (15%, ~$3.00/unit), this Bluetooth speaker at $19.99 selling price yields a net profit of only $3.83-$5.31, a margin of 19%-27%. Use our FBA Profit Calculator to input all the above data and instantly calculate net profit under different pricing and logistics scenarios.
6. Sea Freight vs Air Freight vs Express
| Method | Cost/Unit | Transit Time | Best For |
|---|
| Sea Freight (LCL) | $2.0-$4.0 | 30-40 days | First bulk order, regular restock |
| Sea Freight (FCL) | $1.5-$3.0 | 25-35 days | Large volume, stable inventory |
| Air Freight | $5.0-$12.0 | 7-12 days | Urgent restock, product testing |
| Express (DHL/UPS) | $8.0-$18.0 | 3-5 days | Small batch, high-value products |
7. Three Practical Ways to Reduce Logistics Costs
- Consolidate LCL into FCL: When your shipment exceeds 15 cubic meters, a full container is typically 30%-40% cheaper than LCL. Combine multiple small shipments into one large one.
- Optimize packaging: If the Bluetooth speaker package thickness drops from 2.3cm to 1.8cm, FBA fees may drop from "Large Standard" to "Small Standard," saving ~$1.65/unit. That's $1,650 saved on 1,000 units.
- Plan restock timing: Don't wait until inventory runs dry — air freight costs 2‑4× sea freight. Use our Working Days Calculator to factor in production time + sea transit + Amazon inbound processing, and set a smart reorder trigger point.
FAQ
What's the core difference between FOB and CIF?
FOB (Free On Board) requires the seller to deliver goods onto the vessel at the named port — after that, risk and costs shift to the buyer. CIF (Cost, Insurance, Freight) requires the seller to arrange and pay for transport and insurance to the destination port. In short: FOB = seller responsible until loading; CIF = seller responsible until arrival. Chinese factories typically quote FOB.
How to estimate U.S. customs duties?
Duty = Declared Value × Duty Rate. Bluetooth speakers under the 2026 HTSUS generally fall under 0%-7.5%, depending on classification. Always confirm the correct HTS code and applicable rates with your customs broker before shipping. Section 301 tariffs may add extra duties on certain Chinese‑origin goods.
Why is last‑mile trucking so expensive?
U.S. domestic trucking is priced by distance and pallet/case count. From LA port to Amazon ONT8 (~50 miles) is relatively cheap, but shipping to an East Coast warehouse (e.g., MDW2) can double the cost. Many sellers ship to West Coast warehouses and use Amazon Multi‑Channel Fulfillment (MCF) to reach customers nationwide.
How can I verify these numbers with your calculators?
Use the FOB/CIF Calculator — enter your EXW price, select the port and container type, and it will estimate FOB and CIF values. Then use the FBA Profit Calculator to input CIF cost, duties, last‑mile trucking, FBA fees, and referral fees to see your final net profit.