Estimate shipment emissions from freight mass, distance, and a mode-specific emission factor. The result includes total CO₂e, freight activity in tonne-kilometers, and emissions intensity per kilogram shipped.
The main result estimates total freight emissions for the entered activity. The calculation is factor-based and does not separately model empty returns, refrigeration, handling, or warehousing.
Emission factors vary by vehicle, fuel, load factor, geography, and methodology. Supply a factor consistent with your reporting boundary.
Moving 18 tonnes over 850 km with a 0.062 kg CO₂e/t-km factor for 12 shipments equals 183,600 t-km and 11.38 t CO₂e.
One tonne-kilometer represents one metric tonne of freight moved one kilometer.
Use a factor from the carrier, a recognized inventory program, or an official dataset that matches the mode and boundary.
Only if the emission factor already includes them or you adjust the activity or factor to represent empty running.
Yes. Enter the number of shipments and the tool multiplies the mass-distance activity accordingly.
The factor is expressed per tonne-kilometer, so mass must be in metric tonnes for the units to match.
| Variable | Meaning | Unit |
|---|---|---|
| m | Freight mass | metric tonnes |
| d | Route distance | km |
| EF | Emission factor | kg CO₂e/t-km |
| n | Shipment count | count |