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A typical UK household's gas and electricity comes to around 2.1 t CO₂e a year — about 95 tree-years. That's Ofgem's typical use since July 2026 (9,500 kWh of gas and 2,500 kWh of electricity a year) on the government's 2026 conversion factors. Count everything a person is responsible for — travel, food, goods and services, wherever in the world they're made — and the average UK per-person footprint is about 10 tonnes a year, some 455 trees.
The home number is the one you can actually move: better fabric, a heat pump and solar all cut it, and the electricity share falls every year as the grid decarbonises.
Source: Ofgem typical domestic consumption values from 1 July 2026 (9,500 kWh gas, 2,500 kWh electricity) × DESNZ 2026 conversion factors; per-person footprint: Defra, Carbon footprint for the UK and England to 2023 (published 2026). Figures are illustrative UK equivalents.
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Frequently asked questions
Does this include my car and flights?
No — the ~2.1 t figure is just home gas and electricity. Add travel, food and goods and the average UK person is around 10 t a year.