容積重量計算機
宅配便の荷物サイズから容積重量を計算し、実重量と比較して請求重量と予想送料を確認できます。
Package Dimensions
📖 使い方
- Enter the package dimensions (length, width, height) in cm
- Enter the actual weight in kg
- Click Calculate
- Compare volumetric weight vs actual weight
- View estimated costs by carrier
✨ 主な機能
- ✓Domestic and international volumetric weight calculation
- ✓Actual vs volumetric weight comparison
- ✓Automatic chargeable weight (higher of actual or volumetric)
- ✓Multi-carrier rate comparison
- ✓Support for DHL, FedEx divisor (5000)
- ✓Real-time formula display
📐 計算式
Volumetric Weight (kg) = L(cm) × W(cm) × H(cm) ÷ Divisor (6000 or 5000)💡 計算原理
- •Volumetric weight (dimensional weight) converts package size into a weight equivalent.
- •Carriers charge based on the higher of actual weight or volumetric weight (chargeable weight).
- •Domestic carriers typically use divisor 6000.
- •International air freight (DHL, FedEx, UPS) typically uses divisor 5000.
- •Light but bulky items (cushions, clothing) often have higher volumetric weight.
- •Small but heavy items (metal parts) have higher actual weight.
❓ よくある質問
Q. What is volumetric weight?
A. Volumetric weight is calculated from package dimensions (L×W×H) divided by a standard factor. Since vehicle/aircraft space is limited, bulky but light packages take up valuable space, so carriers charge based on volumetric weight.
Q. Why use 6000 or 5000 as divisors?
A. 6000 is the standard for domestic shipping, while 5000 is the IATA standard for international air cargo. A smaller divisor results in higher volumetric weight and higher shipping costs.
Q. How is chargeable weight determined?
A. The chargeable weight is whichever is greater: actual weight or volumetric weight. Carriers use this to calculate shipping rates.
Q. Can the estimated cost differ from actual?
A. Yes, these are reference estimates only. Actual rates depend on carrier contracts, delivery zones, fuel surcharges, and size limits.
Q. How can I reduce volumetric weight?
A. Use the smallest box possible that fits your items. Minimizing empty space and choosing appropriate box sizes can significantly reduce shipping costs.
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