Scope 1 / 2 / 3 Calculator

Estimate an organization's direct, indirect, and value-chain greenhouse gas emissions using the GHG Protocol framework.

US factors applied. Emission factors are US EPA (2023) defaults. Country-specific electricity grids and combustion factors will be added in a future update. All results are in metric tonnes CO₂e.

Scope 2

Purchased Electricity

Indirect emissions from grid electricity

Electricity (kWh/year)

Factor: 0.38590 kg CO₂e/kWh (EPA eGRID 2022 national avg)

Scope 1

Stationary Combustion

On-site fuel combustion for heating, hot water, and processes

Natural Gas (SCF/year)

0.05562 kg CO₂e/SCF

Propane (gallons/year)

6.013 kg CO₂e/gal

Heating / Residual Oil (gallons/year)

11.58 kg CO₂e/gal

Kerosene (gallons/year)

10.15 kg CO₂e/gal

Scope 1

Mobile Combustion (Fleet)

Company-owned vehicle fuel consumption

Gasoline (gallons/year)

8.78 kg CO₂e/gal

Diesel (gallons/year)

10.21 kg CO₂e/gal

Scope 3

Other Indirect Emissions

Water, wastewater treatment, and solid waste disposal

Water Consumed (gallons/year)

0.000176 kg CO₂e/gal

Wastewater (gallons/year)

0.000286 kg CO₂e/gal

MSW to Landfill (short tons/year)

452 kg CO₂e/short ton (EPA WARM)

Results Summary

All values in metric tonnes CO₂e/year

Emission Source	Scope	Tonnes CO₂e
Electricity	2	0.00000
Natural Gas	1	0.00000
Propane	1	0.00000
Heating / Residual Oil	1	0.00000
Kerosene	1	0.00000
Gasoline (fleet)	1	0.00000
Diesel (fleet)	1	0.00000
Water Supply	3	0.00000
Wastewater	3	0.00000
MSW (landfill)	3	0.00000
Scope 1 Total (Direct)	1	0.00000
Scope 2 Total (Electricity)	2	0.00000
Scope 3 Total (Indirect)	3	0.00000
Grand Total		0.00000

Methodology: GHG Protocol Corporate Accounting and Reporting Standard. US emission factors from EPA "Emission Factors for Greenhouse Gas Inventories" (April 2023) and EPA eGRID 2022. Data elements (PDF)

Supporting tools: Visual Scale Visualization · Fuel Comparison Analysis