Carbon Footprint Calculator

Location-based: the grid your meter sits on.
For a market-based figure, enter your supplier's published factor. 0 uses the grid average.
In the unit shown for the fuel you selected.
Used with fuel economy when you know distance rather than fuel volume.
Distance per unit of fuel, in the same units as the two fields above.
Divides the household total to give a per-person figure.
Total annual footprint
3.671505 t CO2e
Carbon Footprint Calculator
Total annual footprint
3,671.504556 kg CO2e
Per person
3.671505 t CO2e
Electricity
3,671.504556 kg CO2e
Heating fuel
0 kg CO2e
Vehicle fuel
0 kg CO2e
Flights
0 kg CO2e
Largest single source
Electricity (100%)
Electricity accounting basis
location-based (United States national average)
Worked out from US EPA, Greenhouse Gas Emission Factors Hub and 3 other sources.
Electricity is location-based, using the average intensity of the selected grid. A market-based figure needs your supplier's own factor.
An estimate built from published average factors. A reported inventory needs supplier-specific and activity-specific data, and should follow the GHG Protocol.

How this is worked out

3 steps
  1. Electricity: 10500 kWh x 0.3496671006 kg CO2e/kWh = 3671.5 kg CO2e
  2. Total 3671.5 kg CO2e, or 3.672 tonnes a year.
  3. All factors are on the IPCC AR5, 100-year, without climate-carbon feedbacks basis.
Breakdown by sourcetable
sourceamountunitkgCO2esharePercentfactor
Electricity10,500kWh3,671.5051000.3496671006 kg CO2e/kWh
Factors appliedtable
itemfactorunitsource
Electricity (United States national average)0.349667kg CO2e/kWhUS EPA eGRID2023 data file revision 2 (2025-06-12), sheet SRL23/US23, annual total-output emission rates. Cross-check: the 2025 EPA GHG Emis

Results are general information, not financial, tax, legal, medical or engineering advice.