Corporate GHG Scope 1/2 Carbon Footprint Calculator
Calculate direct fuel-combustion emissions (Scope 1) and purchased-electricity emissions (Scope 2) separately; emission factors are editable.
Default emission factors are based on U.S. averages (sources cited below) and provide a directional estimate only. For formal GHG inventory or GHG Protocol-aligned reporting, use factors specific to your region and obtain independent verification where required. This tool does not replace accounting or consulting services.
Scope 1 — Direct Fuel Emissions
Scope 2 — Purchased Electricity
Default factor sources: U.S. EPA, GHG Emission Factors Hub (2024) — CO2 factors for natural gas, diesel, gasoline, and propane; U.S. EPA eGRID2022 (published January 2024) — U.S. national average grid factor for electricity (823.1 lb CO2/MWh ≈ 0.373 kg CO2/kWh). Using a factor specific to your local grid is recommended.