The CarbonNeutral Company

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This calculator is designed to allow you to calculate CO2 emissions from a combination of flights, driving, and rail. The categories are organised around the factors most significant to carbon footprint e.g. distance for vehicles.

You will also be able to compare the impact of reducing travel or changing the mix of travel.

Factors / Assumptions

Short-haul air travel = 0.13 kgCO₂ / per passenger, per KM
Long-haul air travel = 0.11 kgCO₂ / per passenger, per KM
Petrol Car = 0.337 kgCO₂ / per mile
Diesel Car = 0.319 kgCO₂ / per mile
Hybrid Car = 0.203 kgCO₂ / per mile
Rail = 0.06 kg CO₂ / per passenger, per KM

Air travel
Number of short-haul flight segments (return flight = 2 segments)
Number of medium-haul flight segments (return flight = 2 segments)
Number of long-haul flight segments (return flight = 2 segments)
or
Total short-haul distance flown (segments less than 3,000km (1,875 miles) each)	KM
	Miles
Total long-haul distance flown (segments >3,000km (1,875 miles) each)	KM
	Miles
Cars
The mix of a corporate fleet is often extremely varied. To enable you to get a broad view, use the following to 'band' by number of vehicles/distance traveled: e.g. you might have 100 cars that do an average of 12k miles; 500 cars that do an average of 20k miles etc. You can add up to 10 'bands' in each fuel type section.

Petrol	Number of cars	Av. annual mileage	Emissions (kgCO₂ / mile)

Diesel	Number of cars	Av. annual mileage	Emissions (kgCO₂ / mile)


Hybrid	Number of cars	Av. annual mileage	Emissions (kgCO₂ / mile)

	Rail travel
	Total rail distance	KM
		Miles

Air travel

or

Cars

Rail travel