International Freight Rate Calculator
Calculate DDP All-In Shipping Cost with Real Auction Rates
*It may be less, but it is counted as .
*It may be smaller, but it is counted as .
送货方式
Sea
China
USA
地址
1 pick-up
1 delivery addresses
货物
3 pallets
1200 kg
4 cbm
Electronics device
预估价格
International freight costs range from $0.40-1.05 per kg by ocean (12-38 days) to $3.50-5.50 per kg by air (5-8 days) from Asia to the US. These are market averages. This calculator uses a different data source: actual winning bids from reverse freight auctions completed in the last 24 hours on AiDeliv. Default output is total DDP cost, including freight, import duties, customs clearance, and last-mile delivery, because that's the number e-commerce importers actually pay.
How International Shipping Costs Are Calculated
International shipping costs depend on seven factors: route (origin to destination distance and lane demand), shipping mode (ocean is 4-8x cheaper than air but 3-5x slower), cargo weight and dimensions (carriers charge by whichever is greater: actual weight or dimensional weight), season (rates peak August-November, cheapest January-March), fuel costs (bunker adjustment factor changes monthly), port congestion (adds 15-25% during high utilization), and the pricing mechanism.
Most importers overlook the seventh factor: how you get quoted matters. A single forwarder's static quote includes their margin (typically 15-30% above carrier cost). Through competitive bidding where multiple carriers submit progressively lower bids in reverse auctions, that margin disappears. Based on 2,500+ completed auctions on AiDeliv, winning bids average $0.65/kg DDP from China to USA.
How Dimensional Weight Affects Your Shipping Cost
Carriers charge by chargeable weight: the greater of actual weight or dimensional weight. Dimensional weight penalizes light, bulky cargo.
- Air freight: L x W x H (cm) / 6,000 = dimensional weight in kg.
- Ocean freight: L x W x H (cm) / 1,000,000 = CBM, then CBM x 168 = dimensional weight in kg (air equivalent) or CBM x 363 for ocean.
Example: 10 boxes of 50x40x30 cm at 15 kg each. Actual weight: 150 kg. Volume: 0.6 CBM.
Dimensional weight (air): 100 kg. You'd pay for actual weight (150 kg) by air.
But if those boxes were 100x80x60 cm at 10 kg each: actual weight 50 kg, dimensional weight (air) 800 kg.
You'd pay for 800 kg, 16x the actual weight. This is why lightweight, bulky products (pillows, plastic toys, packaging) are disproportionately expensive to ship by air.
Ocean vs Air Freight: When to Choose Each
Rule of thumb: ship by ocean if your lead time exceeds 14 days and product value is under $15/kg. Ship by air if you need goods in under 10 days, product margin exceeds $20/kg, or you're urgently restocking fast-selling Amazon FBA inventory to avoid stock-outs.
| Factor | Ocean | Air | Winner |
|---|---|---|---|
| Cost per kg | $0.40-1.05 | $3.50-5.50 | Ocean (4-8x cheaper) |
| Transit time | 12-38 days | 5-8 days | Air (3-5x faster) |
| DDP all-in (auction) | $0.65/kg avg | $4.20/kg avg | Ocean for value, Air for speed |
| Best for | Bulk restock, heavy goods, planned inventory | Emergency restock, high-margin items, samples | Depends on margin and urgency |
Ocean freight is 4-8x cheaper than air but 3-5x slower. Through reverse freight auctions on AiDeliv, ocean DDP rates from China to USA average $0.65/kg all-in (freight + duties + delivery). Air DDP averages $4.20/kg. The breakeven: if your product margin is under $15/kg, ocean is the only viable option.
Static Forwarder Quote
Pros: familiar process.
Cons: 3-7 day response, margin 15-30% built in, freight-only price (duties separate).
Reverse Freight Auction
Pros: 3-12 hour bids, carriers compete (15-40% savings), DDP all-in price.
Cons: requires upfront cargo details, new process.
DDP Shipping Cost Breakdown: What You Actually Pay
DDP (Delivered Duty Paid) means the carrier's price covers everything from factory to your door or Amazon warehouse. Here's what's inside a typical DDP quote from China to USA for a $5,000 shipment of consumer goods:
- Freight (ocean): $350-500 (the carrier transport cost).
- Import duties: $375-750 (7.5-15% HTS base rate).
- Section 301 tariff: $1,250 (25% on most Chinese consumer goods).
- MPF: $17.30 (0.3464% of value, min $31.67).
- HMF: $6.25 (0.125% of value, ocean only).
- Customs broker: $150-200.
- Last-mile delivery: $150-300 to warehouse.
Amazon FBA Shipping Calculator: True Cost of Restocking Inventory
Amazon FBA sellers have a unique shipping cost equation: freight + duties + Amazon FBA fees + storage fees + referral fees must all fit within the product's selling price and still leave margin.
A product that sells for $25 on Amazon with $8 COGS needs total logistics cost under $5-7 to maintain 20%+ margin after Amazon's 15% referral fee and $3-5 FBA fulfillment fee. This calculator helps FBA sellers see the full DDP shipping cost before committing to a product or supplier.
Enter your cargo details above, and the DDP output shows exactly what shipping, duties, and delivery will cost per unit.
Frequently Asked Questions
How are international shipping costs calculated?
International shipping costs are determined by the greater of actual weight or dimensional weight, multiplied by the per-kg rate for your route and mode (ocean or air). Additional costs include fuel surcharges, port handling, customs clearance, and duties. DDP (Delivered Duty Paid) shipping bundles all these into one all-in price. This calculator uses winning bids from reverse freight auctions completed in the last 24 hours on AiDeliv, not market estimates.
How much does it cost to ship from China to USA?
Ocean freight: $0.40-1.05 per kg (12-38 days transit). Air freight: $3.50-5.50 per kg (5-8 days). These are freight-only market rates. Total DDP cost (freight + duties + customs + delivery) is significantly higher. Through reverse freight auctions on AiDeliv, average DDP all-in rate from China to USA is $0.65/kg based on 2,500+ completed shipments. DDP includes Section 301 tariffs, customs clearance, and last-mile delivery.
What is dimensional weight and how does it affect shipping cost?
Dimensional weight converts package volume into a weight equivalent. Carriers charge by whichever is greater: actual weight or dimensional weight. Air formula: L x W x H (cm) / 6,000. Ocean: L x W x H (cm) / 1,000,000 = CBM. Lightweight bulky items (pillows, plastic toys) pay based on dimensional weight, which can be 5-10x the actual weight. This calculator automatically applies dimensional weight rules.
What's the difference between freight cost and DDP cost?
Freight cost covers only the transportation from port to port. DDP (Delivered Duty Paid) cost covers everything: freight + import duties (7.5-145% for Chinese goods) + customs broker fee ($150-250) + MPF + HMF + last-mile delivery. For a typical $5,000 shipment of consumer goods from China, freight might be $400 but total DDP cost is $2,300-3,000. This calculator shows both, with DDP as the default.
How do I calculate shipping costs for my Amazon FBA products?
Enter your product's weight, dimensions, and value in the calculator above. Select China (or your sourcing country) as origin and your nearest Amazon fulfillment center city as destination. The DDP output gives you per-unit shipping cost including duties. Subtract this plus Amazon's FBA fee (15% referral + $3-5 fulfillment) from your selling price to see your actual margin. Sellers in importing communities recommend doing this calculation before placing manufacturing orders.
Why are your rates different from other freight calculators?
Most freight calculators use historical market averages or algorithmic estimates. This calculator uses actual winning bids from reverse freight auctions completed in the last 24 hours on AiDeliv. In these auctions, multiple carriers submit progressively lower bids competing for your shipment. The result is a rate that reflects real market competition, not a single forwarder's markup. That's why our rates typically show 15-40% lower than static quote calculators.
How often are rates updated?
Rates update every 24 hours based on completed reverse freight auctions on AiDeliv. For popular routes (China to US West Coast, China to US East Coast), data refreshes daily from multiple auctions. For less common routes, the calculator may use data from the last 3-7 days. The source and recency are displayed with every estimate. Market-wide rate trends are also available on our Container Shipping Rates page.
Related DataFreight Tools
Want a Binding Rate, Not an Estimate?
This calculator shows estimates. A freight auction gives you a real carrier bid you can accept or reject. Post your shipment, carriers compete, you pick the winner. Average DDP rate: $0.65/kg. First bids arrive within 3 hours.
Run a Freight Auction