Estimate a household carbon footprint from energy use, travel and occupancy.
Household emissions divide unevenly between electricity, heating and travel depending on climate and grid mix. Per-person figures are the fair comparison, since larger households share fixed heating load. Grid intensity varies from under 0.05 kg/kWh in nuclear or hydro-dominated grids to over 0.6 in coal-heavy ones, which changes the priority order of actions completely.
Household Carbon Footprint
Emissions = Σ (activity × emission factor); gas is 0.184 kg/kWh and car travel about 0.17 kg/km
Emissions = Σ (activity × emission factor); gas is 0.184 kg/kWh and car travel about 0.17 kg/km Household emissions divide unevenly between electricity, heating and travel depending on climate and grid mix. Per-person figures are the fair comparison, since larger households share fixed heating load.
Grid intensity varies from under 0.05 kg/kWh in nuclear or hydro-dominated grids to over 0.6 in coal-heavy ones, which changes the priority order of actions completely.
This calculator takes 5 inputs: Annual electricity use, Annual gas use, Annual car distance, Household occupants, Grid carbon intensity. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.