Free calculators
Every calculator uses reviewed factors only and shows the factor, source row, year and boundary behind its result.
Scope 1
Fuel combustion
Natural gas, diesel, LPG, fuel oil, coal and biofuels burned in your own boilers, generators and vehicles.
Refrigerant leakage
Leaks from air conditioning, heat pumps and refrigeration, from the mass of refrigerant topped up or lost.
Scope 2
Electricity (location-based)
Grid electricity bought for your sites, using the UK grid average factor.
Purchased heat and steam
Heat or steam bought from a district or industrial network.
Scope 3
Business travel
Flights, rail, taxis, buses, ferries and employee-owned cars used for work trips.
Hotel stays
Nights spent in hotels on business trips, by country.
Freight transport
Goods moved by road, rail, sea or air, in tonne-kilometres or vehicle kilometres.
Waste
Waste from your operations by material and treatment route, such as landfill, recycling or composting.
Purchased materials
Steel, aluminium, plastics, paper, glass, concrete and other materials you buy.