How Is Consolidated Shipping Cost Calculated? Formula, Rates & 10 Money-Saving Tips
📅 Last updated: 2026-09-01 · ✍️ HowBridge Consolidated Shipping Editorial Team · 🛡️ Compiled from Customs announcements and current regulations
3 Core Shipping Cost Formulas
Consolidated shipping cost = chargeable weight × per-kg rate. Chargeable weight is whichever is larger between "actual weight" and "volumetric weight." Volumetric weight (kg) = length × width × height (cm) ÷ 10,000 (large sea-freight items instead use cai units, ÷28,316).
① Volumetric Weight (Most Important)
Example: for a 50×40×30cm box, volumetric weight = 60,000 ÷ 10,000 = 6 kg. HowBridge uses ÷10,000 for sea-express and air freight; large sea-freight items are instead calculated in cai units: length × width × height (cm) ÷ 28,316.
② Chargeable Weight
Billing uses whichever is larger between actual and volumetric weight — this is why the cost of light-but-bulky items (large volume, low weight) is so often underestimated.
③ Total Shipping Cost
Sea-express NT$50/unit, air freight NT$100/kg, sea LCL consolidation from NT$25/kg or NT$150/cu ft (quote-based); for shipments under 10 kg, sea-express adds NT$100 and air freight adds NT$120 in delivery fees — waived once you reach 10 kg.
The larger the volumetric divisor, the lower the calculated volumetric weight — and the better it is for you. When comparing consolidators, check the divisor along with the per-kg rate, not the rate alone.
Rate Comparison for 4 Shipping Services
HowBridge offers four shipping services, and all rates are published on the rate page. If you see different per-kg prices, check which service they refer to first — it's not a case of old vs. new pricing.
| Service | Rate | Transit Time | Pricing Method |
|---|---|---|---|
| Air Express | NT$100/kg | 3–5 days | Larger of actual weight and volumetric weight (÷10,000) |
| Sea-Express (Sea Freight Express) | NT$50/unit | 5–10 days | Larger of actual weight and volumetric weight (÷10,000) |
| Commercial Sea-Express | NT$45/kg | 5–10 days | For seller bulk shipments with invoicing; contact us for custom terms |
| Sea LCL Consolidation (Bulk Cargo) | From NT$25/kg or NT$150/cu ft | 7–14 days | Priced by CBM / cai (÷28,316); quoted by customer service based on your items |
- Delivery fee under 10 kg: sea-express adds NT$100, air freight adds NT$120; waived once you reach 10 kg.
- Same price for regular and special cargo: sensitive items like lithium batteries and cosmetics are not charged extra.
- No minimum spend: small packages never lose their rate advantage to a minimum-order fee.
The actual shipping cost is determined by the system calculation at the time of shipment; before ordering, you can estimate the total with the shipping cost calculator.
Shipping Cost Calculation Examples
Two typical scenarios, worked through with the formulas and rates above (both are sea-express / air express, using the ÷10,000 volumetric divisor).
Example A: Light but Bulky (Storage Boxes, Puffy Clothing)
- Package size: 50×40×30cm
- Actual weight: 1.5 kg
- Volumetric weight = 60,000 ÷ 10,000 = 6 kg
- Chargeable weight = MAX(1.5, 6) = 6 kg (billed by volume)
Air freight cost = 6 × NT$100 + delivery fee NT$120 = NT$720
For light-but-bulky items, sea-express saves about 44% over air freight, while still arriving in 5–10 days.
Example B: Heavy but Compact (Supplements, Metal Parts)
- Package size: 20×15×15cm
- Actual weight: 4 kg
- Volumetric weight = 4,500 ÷ 10,000 = 0.45 kg
- Chargeable weight = MAX(4, 0.45) = 4 kg (billed by actual weight)
Air freight cost = 4 × NT$100 + delivery fee NT$120 = NT$520
Heavy, compact items are billed by actual weight, so the volumetric formula barely matters — choosing sea-express or air freight comes down to how fast you need it.
For bulk items over 10 kg, furniture, and appliances, use sea LCL consolidation instead: from NT$25/kg or NT$150/cu ft, billed by CBM / cai, quoted by customer service based on your items — this page does not calculate a total cost for those.
Air, Sea-Express, or Sea Freight — Which Should You Choose?
For most packages, sea-express is the best value; for light, small items you need quickly, choose air freight; for bulk items over 10 kg, furniture, and appliances, use the sea freight line.
- Urgent, light, small items: Air express is fastest at 3–5 days, NT$100/kg.
- Standard packages (most common): Sea-express takes 5–10 days at NT$50/unit — the balance point between price and speed.
- Bulk cargo, furniture, appliances: Sea LCL consolidation from NT$25/kg or NT$150/cu ft, 7–14 days, billed by CBM / cai and quoted by customer service.
- Lithium batteries, liquids, and cosmetics: Cannot go by air — use sea-express or sea freight instead; HowBridge charges the same price for regular and special cargo, so these sensitive items are not marked up.
Oversized item note: for a single item over 10 cai or 40 kg, Taiwan-side home delivery carries an additional oversize fee (tiered by county/city and cai / weight) — confirm with customer service before ordering.
Consolidation Rules & Free Services
"Consolidation" is the biggest money-saving lever in shipping — multiple orders arrive at the warehouse over time, get packed together, and are billed once based on the combined weight/volume.
- Multiple items become one package, so the delivery fee is charged only once; once the combined weight reaches 10 kg, it is waived entirely.
- With just one combined package, shipping and customs-clearance risk is lower than sending multiple separate parcels.
- EZWay real-name verification only needs to be done once, not once per package.
- 366 days of free storage: wait until all your items arrive before consolidating — no need to rush a shipment just to save on storage fees.
- Consolidation and packing: Free.
- 366 days of storage: Free — wait for multiple orders to arrive before shipping, at no extra cost.
- Photo inspection on arrival: You can request photos of items on arrival to check them before deciding to forward them (contact customer service for details).
- Liquids (cosmetics, cleaning products) and food are best packed in separate boxes to avoid leaks and contamination.
- For fragile items like glass and ceramics, note that you would like reinforced packaging, and consider boxing them separately.
- For BSMI-regulated items (plug-in electronics and appliances), add a note so it matches your customs paperwork.
10 Practical Money-Saving Tips
Every tip below builds directly on the formulas and rates above — you can put them into practice right away.
Wait and Consolidate Before Shipping
Let packages you order over time sit in the warehouse (366 days free storage), then consolidate them all at once: the delivery fee is charged only once, it is waived entirely once the combined weight hits 10 kg, and you only need to complete EZWay real-name verification once.
💰 Zero delivery fee + single deliveryAlways Choose Sea-Express for Light-but-Bulky Items
Bulky, lightweight items are billed by volume, and air freight's per-kg rate is double that of sea-express. For the same storage box in Example A: sea-express NT$400 vs. air freight NT$720.
💰 Saves about 44%Ask the Seller to Ship Furniture Flat-Packed
Shipping cost is based on volume, and pre-assembled furniture mostly ships air. Ask the seller to send it flat-packed (knock-down panels) instead — the volume drops sharply, and so does the cost.
💰 Savings scale directly with the volume reductionBuy During Mainland China's Big Sales
Discounts are deepest during 618, 11.11, and 12.12. Combine them with 366 days of free storage to build up your order gradually, then consolidate into one shipment — saving on both the product price and the shipping cost.
💰 Product discounts + shipping cost spread across a consolidated shipmentPlan for Sea-Express / Sea Freight from the Start for Lithium Batteries and Liquids
Items containing lithium batteries cannot be shipped by air under aviation dangerous-goods rules, and liquids and cosmetics face restrictions too. Plan for sea-express or sea freight from the outset to avoid having to change your order midway. HowBridge charges the same price for regular and special cargo, so sensitive items are not marked up.
💰 Zero markup on sensitive itemsUnderstand the NT$2,000 Duty-Free Threshold — Do Not Try to "Split Orders"
A dutiable value under NT$2,000 is exempt from customs duty and business tax — but this is a "threshold," not an "allowance": go over it, and the entire amount is taxed, not just the portion above NT$2,000. And if you import more than 6 times within six months, customs may deny the exemption altogether. Deliberately splitting an order into smaller shipments to dodge this can backfire — customs can combine them and tax the total, which is not worth the risk.
💰 Avoids back taxes and penaltiesMeasure the Volume Before You Order
Light-but-bulky items are the easiest to underestimate: storage boxes, puffy jackets, strollers, long slim sports gear. Plug the package dimensions into the volumetric formula before ordering, and your shipping budget stays accurate.
💰 Keeps your budget accurateReach 10 kg to Waive the Delivery Fee
At 9 kg, sea-express costs NT$450 + NT$100 delivery fee = NT$550; but reaching 10 kg actually costs only NT$500. When you are just short of the threshold, adding one more small item saves you money.
💰 Saves NT$100–120 in delivery feesReinforce Fragile Items and Film Yourself Unboxing
HowBridge does not currently offer declared-value insurance (cargo transport insurance); compensation standard: a lost parcel is compensated up to three times the shipping fee paid for that parcel; breakage of fragile or battery-containing items is not compensated; other damage is assessed case by case. Prevention beforehand matters more than claims after the fact: note that fragile items need reinforcement, box them separately, and film yourself unboxing the package the moment it arrives.
💰 Risk management — avoids major lossesUse the Official Calculator to Work Out the "True Landed Cost"
Do not compare prices by per-kg rate alone: use the shipping cost calculator together with the tax calculator covering 12,000+ CCC tariff codes to work out "shipping cost + delivery fee + tax" all at once — that is your true total cost.
💰 Helps you avoid costly mistakesFrequently Asked Questions About Consolidated Shipping Cost
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