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Carbon Footprint Calculator

Annual household carbon footprint from energy, travel, flights and diet.

Enter values

Results update as you type.

Result

Total footprint

10.472 tonnes CO₂e/year

Per person
5.236 tonnes
Biggest contributor
Diet
Against the 2.3 t target
2.28 ×
Trees to offset
499
In kilograms
10,472

Breakdown

Sourcekg CO₂e/yearShare
Diet3,80036.3%
Heating gas2,19621.0%
Flights2,10020.1%
Car travel1,56014.9%
Electricity8167.8%

Emission factors are typical averages and vary by country, supplier and year.

About the Carbon Footprint Calculator

A carbon footprint adds up the emissions attributable to how you live. Electricity and heating usually dominate in cooler climates, while flights can overwhelm everything else for frequent flyers. Enter your own figures — nothing here is estimated from your location.

Also known as: co2 footprint calculator, household emissions, my carbon footprint, personal carbon calculator, household-emissions.

How to use this calculator

  1. Enter electricity per year, grid carbon intensity, gas per year, car distance per year and the other fields.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

footprint = Σ (activity × emission factor)

Worked example

Using the values pre-filled in the calculator above:

  • Electricity per year = 3,500 kWh
  • Grid carbon intensity = 233 g/kWh
  • Gas per year = 12,000 kWh
  • Car distance per year = 12,000 km
  • Car emissions = 130 g CO₂/km
  • Short flights per year = 2
  • Long-haul flights per year = 1
  • Diet: Average

the calculator returns:

  • Total footprint: 10.472 tonnes CO₂e/year
  • Per person: 5.236 tonnes
  • Biggest contributor: Diet
  • Against the 2.3 t target: 2.28 ×