Climate Cooperative
CO2 calculator
A quick estimate of the emissions behind a year of your travel, home, food and shopping. Nothing is stored, and the numbers stay on your own device.
Flights per year (return trips)
Car
What do you drive?
Public transport
Home energy
Enter the totals for your home. We divide them by the number of people living there.
Food
Shopping and services
The numbers behind this
- Short return flight: 250 kg CO2e
- Medium return flight: 600 kg CO2e
- Long haul return flight: 1800 kg CO2e
- Car per km: petrol 0.19, diesel 0.175, hybrid 0.13, plug-in hybrid 0.1, electric 0.055 kg CO2e
- Public transport: 0.1 kg CO2e per km by bus, 0.04 kg CO2e per km by train
- Electricity: 0.25 kg CO2e per kWh (EU grid average), 0.05 kg with a certified renewable contract
- Natural gas: 1.9 kg CO2e per m3, heating oil 2.7 kg CO2e per litre
- Food per year: 2500 kg (meat every day), 1700 kg (average), 1400 kg (meat a few times a week), 1100 kg (mostly plant based)
- Shopping and services per year: 700 kg (low), 1300 kg (average), 2200 kg (high)
- One impact system captures 175 kg CO2 per year, once established. The number of systems is always rounded up.
Factors are rounded averages based on published figures from the UK DEFRA conversion factors, the European Environment Agency and peer reviewed diet studies. Home energy is divided by the number of people in your household. Your real footprint depends on your car, your energy supplier and where you live, so treat this as an estimate rather than an audit.