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Carbon footprint of travel per kilometer, 2018

The carbon footprint of travel is measured in grams of carbon dioxide equivalents per passenger kilometer. This includes carbon dioxide, but also other greenhouse
gases, and increased warming from aviation emissions at altitude.

0 g50 g100 g150 g200 g250 gDomestic flight255 gMedium car (petrol)192 gMedium car (diesel)171 gShort-haul flight (economy)156 gLong-haul flight (economy)150 gBus105 gMotorcycle (medium)103 gPetrol car, 2 passengers96 gMedium electric vehicle (UK electricity)53 gNational rail41 gFerry (foot passenger)19 gEurostar (international rail)6 g

Source: UK Department for Business, Energy & Industrial Strategy. Greenhouse gas reporting: conversion factors 2019.

Note: Data is based on official conversion factors used in UK reporting. These factors may vary slightly depending on the country, and assumed occupancy of public transport such as buses and trains.

Related: Which form of transport has the smallest carbon footprint?

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