Car CO₂ Emissions Calculator
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CO₂ emissions per year
3.12 tonnes
Per mile
260 g CO₂e
Trees to absorb it
142 trees
Switching to an electric car would cut this to about 0.57 t per year on a low-carbon grid (charging electricity included).
- Your car3.12 t
- Petrol car – large / SUV5.27 t
- Diesel car – large / SUV4.14 t
- Diesel car – average3.33 t
- Petrol car – average3.12 t
- Diesel car – small2.79 t
- Petrol car – small2.78 t
- Hybrid car (HEV)2.5 t
- Motorbike – average2.18 t
- Bus (per passenger)2.03 t
- Plug-in hybrid (PHEV)1.33 t
- Train (per passenger)0.68 t
- Electric car (EV)0.57 t
Factors: UK Government GHG Conversion Factors 2026 (DESNZ/DEFRA), per vehicle-km; bus and train per passenger-km. EV figure uses UK grid electricity; choose "Use my fuel economy" to set your own grid.
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