Those who care about the environment strive to reduce their carbon footprint. One of the main sources of CO₂ emissions for a modern city dweller is their car. Most of us use a car for personal transportation every day.
Our vehicle carbon emissions calculator can show you how much CO₂ your car emits over a specific period of time. This information is useful when considering more eco-friendly transportation options.
Car CO₂ Emissions Calculator
Estimate your vehicle’s carbon dioxide emissions by fuel type, consumption, and driving distance.
Litres per 100 km
Kilometres per year
Units:
Period:
⚠ Please enter valid values for both fields.
—g/km
CO₂ per km
—kg
CO₂ per year
—t
Tonnes per year
vs. EU average new car
Avg: 116 g/km
Formula:
CO₂ (g/km) = Consumption (L/100 km) ÷ 100 × Emission factor (g/L) |
Emission factors (DEFRA/IPCC):
Petrol 2,310 g/L · Diesel 2,640 g/L · LPG 1,613 g/L · Hybrid 2,310 g/L ·
Electric: kWh/100 km × 233 g/kWh (EU grid avg 2024).
Period CO₂ (kg) = g/km × km/period ÷ 1,000. Monthly × 12 = annual total.
You can also specify the type of fuel and other values to get more accurate results.
What it calculates:
| Output | What it means |
|---|---|
| g/km | Grams of CO₂ emitted per kilometre driven |
| kg/year | Total annual CO₂ in kilograms |
| tonnes/year | Annual CO₂ in metric tonnes |
The formula:
CO₂ (g/km) = Fuel consumption (L/100 km) ÷ 100 × Emission factor (g/L)
Calculate the carbon footprint for your car!