Shipping Emissions Calculator
Estimate CO2 emissions from shipping packages or freight by truck, ship, rail, or air.
Shipping CO2
0.84 kg CO2
Shipping CO2 vs Package Weight
公式
## How to Calculate Shipping Emissions Shipping emissions depend on weight, distance, and transport mode. ### Mode Factors (lbs CO2 per ton-mile) - **Truck**: ~0.37 - **Rail**: ~0.05 - **Ocean Ship**: ~0.01 - **Air freight**: ~2.2 ### Formula **CO2 = (Weight / 2000) * Distance * Mode Factor**
计算示例
Ship a 10-lb package 1,000 miles by truck.
- 01Weight in tons: 10 / 2000 = 0.005 tons
- 02CO2: 0.005 * 1000 * 0.37 = 1.85 lbs
- 03In kg: 1.85 / 2.205 = 0.84 kg CO2
常见问题
Which shipping mode produces the least emissions?
Ocean shipping at about 0.01 lbs CO2 per ton-mile, followed by rail at 0.05. Air freight is most intensive at 2.2.
How do I pick the right mode factor?
Use Truck = 0.37, Rail = 0.05, Ocean = 0.01, Air = 2.2 lbs CO2 per ton-mile. For mixed-mode shipping, use a weighted average.
Does expedited shipping produce more emissions?
Yes. Expedited shipping often uses air freight, producing 6x more CO2 than truck and 40x more than rail per ton-mile.