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Emission factor finder

Look up a published emission factor by what it is for — diesel, grid electricity in India or another country, cement, business travel — and see its gases, basis and the table it came from.

  • 10,277 factors from 7 public sources
  • Gases, GWP basis and the publisher's table reference on every row
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438 factors · US EPA Emission Factors Hub 2025

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ActivityDetailRegion · yearFactorGasesSource · reference
Residual fuel oil No. 6FuelsStationary combustion · Petroleum productsUnited States · 202511.3065 kg CO₂e per gallonAR5 · Scope 1CO₂ 11.27 · CH₄ 0.00045 · N₂O 0.00009US EPA Emission Factors Hub 2025Table 1 (heat content 0.15 mmBtu/gallon)
Residual fuel oil No. 6FuelsStationary combustion · Petroleum products · per energy (HHV)United States · 202575.343 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 75.1 · CH₄ 0.003 · N₂O 0.0006US EPA Emission Factors Hub 2025Table 1
Special naphthaFuelsStationary combustion · Petroleum productsUnited States · 20259.0718 kg CO₂e per gallonAR5 · Scope 1CO₂ 9.04 · CH₄ 0.00038 · N₂O 0.00008US EPA Emission Factors Hub 2025Table 1 (heat content 0.125 mmBtu/gallon)
Special naphthaFuelsStationary combustion · Petroleum products · per energy (HHV)United States · 202572.583 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 72.34 · CH₄ 0.003 · N₂O 0.0006US EPA Emission Factors Hub 2025Table 1
Sub-bituminous coalFuelsStationary combustion · Coal and cokeUnited States · 20251,688.7 kg CO₂e per short tonAR5 · Scope 1CO₂ 1,676 · CH₄ 0.19 · N₂O 0.028US EPA Emission Factors Hub 2025Table 1 (heat content 17.25 mmBtu/short ton)
Sub-bituminous coalFuelsStationary combustion · Coal and coke · per energy (HHV)United States · 202597.902 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 97.17 · CH₄ 0.011 · N₂O 0.0016US EPA Emission Factors Hub 2025Table 1
TiresFuelsStationary combustion · Other solid fuelsUnited States · 20252,463.4 kg CO₂e per short tonAR5 · Scope 1CO₂ 2,407 · CH₄ 0.896 · N₂O 0.118US EPA Emission Factors Hub 2025Table 1 (heat content 28.0 mmBtu/short ton)
TiresFuelsStationary combustion · Other solid fuels · per energy (HHV)United States · 202587.979 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 85.97 · CH₄ 0.032 · N₂O 0.0042US EPA Emission Factors Hub 2025Table 1
Unfinished oilsFuelsStationary combustion · Petroleum productsUnited States · 202510.393 kg CO₂e per gallonAR5 · Scope 1CO₂ 10.36 · CH₄ 0.00042 · N₂O 0.00008US EPA Emission Factors Hub 2025Table 1 (heat content 0.139 mmBtu/gallon)
Unfinished oilsFuelsStationary combustion · Petroleum products · per energy (HHV)United States · 202574.783 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 74.54 · CH₄ 0.003 · N₂O 0.0006US EPA Emission Factors Hub 2025Table 1
Used oilFuelsStationary combustion · Petroleum productsUnited States · 202510.2427 kg CO₂e per gallonAR5 · Scope 1CO₂ 10.21 · CH₄ 0.00041 · N₂O 0.00008US EPA Emission Factors Hub 2025Table 1 (heat content 0.138 mmBtu/gallon)
Used oilFuelsStationary combustion · Petroleum products · per energy (HHV)United States · 202574.243 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 74 · CH₄ 0.003 · N₂O 0.0006US EPA Emission Factors Hub 2025Table 1
Agricultural byproductsFuels — biomassStationary combustion · Biomass (solid)Biogenic CO2: reported separately, excluded from CO2eUnited States · 202516.667 kg CO₂e per short tonAR5 · Scope 1CO₂ 975 · CH₄ 0.264 · N₂O 0.035US EPA Emission Factors Hub 2025Table 1 (heat content 8.25 mmBtu/short ton)
Agricultural byproductsFuels — biomassStationary combustion · Biomass (solid) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20252.009 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 118.17 · CH₄ 0.032 · N₂O 0.0042US EPA Emission Factors Hub 2025Table 1
Biodiesel (100%)Fuels — biomassStationary combustion · Biomass (liquid)Biogenic CO2: reported separately, excluded from CO2eUnited States · 20250.00657 kg CO₂e per gallonAR5 · Scope 1CO₂ 9.45 · CH₄ 0.00014 · N₂O 0.00001US EPA Emission Factors Hub 2025Table 1 (heat content 0.128 mmBtu/gallon)
Biodiesel (100%)Fuels — biomassStationary combustion · Biomass (liquid) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20250.05995 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 73.84 · CH₄ 0.0011 · N₂O 0.00011US EPA Emission Factors Hub 2025Table 1
Ethanol (100%)Fuels — biomassStationary combustion · Biomass (liquid)Biogenic CO2: reported separately, excluded from CO2eUnited States · 20250.00517 kg CO₂e per gallonAR5 · Scope 1CO₂ 5.75 · CH₄ 0.00009 · N₂O 0.00001US EPA Emission Factors Hub 2025Table 1 (heat content 0.084 mmBtu/gallon)
Ethanol (100%)Fuels — biomassStationary combustion · Biomass (liquid) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20250.05995 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 68.44 · CH₄ 0.0011 · N₂O 0.00011US EPA Emission Factors Hub 2025Table 1
Landfill gasFuels — biomassStationary combustion · Biomass (gaseous)Biogenic CO2: reported separately, excluded from CO2eUnited States · 20250.000125 kg CO₂e per scfAR5 · Scope 1CO₂ 0.025254 · CH₄ 0.000002 · N₂O 0US EPA Emission Factors Hub 2025Table 1 (heat content 0.000485 mmBtu/scf)
Landfill gasFuels — biomassStationary combustion · Biomass (gaseous) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20250.25655 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 52.07 · CH₄ 0.0032 · N₂O 0.00063US EPA Emission Factors Hub 2025Table 1
Other biomass gasesFuels — biomassStationary combustion · Biomass (gaseous)Biogenic CO2: reported separately, excluded from CO2eUnited States · 20250.000168 kg CO₂e per scfAR5 · Scope 1CO₂ 0.034106 · CH₄ 0.000002 · N₂O 0US EPA Emission Factors Hub 2025Table 1 (heat content 0.000655 mmBtu/scf)
Other biomass gasesFuels — biomassStationary combustion · Biomass (gaseous) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20250.25655 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 52.07 · CH₄ 0.0032 · N₂O 0.00063US EPA Emission Factors Hub 2025Table 1
PeatFuels — biomassStationary combustion · Biomass (solid)Biogenic CO2: reported separately, excluded from CO2eUnited States · 202516.178 kg CO₂e per short tonAR5 · Scope 1CO₂ 895 · CH₄ 0.256 · N₂O 0.034US EPA Emission Factors Hub 2025Table 1 (heat content 8.0 mmBtu/short ton)
PeatFuels — biomassStationary combustion · Biomass (solid) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20252.009 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 111.84 · CH₄ 0.032 · N₂O 0.0042US EPA Emission Factors Hub 2025Table 1
Rendered animal fatFuels — biomassStationary combustion · Biomass (liquid)Biogenic CO2: reported separately, excluded from CO2eUnited States · 20250.00657 kg CO₂e per gallonAR5 · Scope 1CO₂ 8.88 · CH₄ 0.00014 · N₂O 0.00001US EPA Emission Factors Hub 2025Table 1 (heat content 0.125 mmBtu/gallon)
Rendered animal fatFuels — biomassStationary combustion · Biomass (liquid) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20250.05995 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 71.06 · CH₄ 0.0011 · N₂O 0.00011US EPA Emission Factors Hub 2025Table 1
Solid byproductsFuels — biomassStationary combustion · Biomass (solid)Biogenic CO2: reported separately, excluded from CO2eUnited States · 202520.956 kg CO₂e per short tonAR5 · Scope 1CO₂ 1,096 · CH₄ 0.332 · N₂O 0.044US EPA Emission Factors Hub 2025Table 1 (heat content 10.39 mmBtu/short ton)
Solid byproductsFuels — biomassStationary combustion · Biomass (solid) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20252.009 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 105.51 · CH₄ 0.032 · N₂O 0.0042US EPA Emission Factors Hub 2025Table 1
Vegetable oilFuels — biomassStationary combustion · Biomass (liquid)Biogenic CO2: reported separately, excluded from CO2eUnited States · 20250.00629 kg CO₂e per gallonAR5 · Scope 1CO₂ 9.79 · CH₄ 0.00013 · N₂O 0.00001US EPA Emission Factors Hub 2025Table 1 (heat content 0.12 mmBtu/gallon)
Vegetable oilFuels — biomassStationary combustion · Biomass (liquid) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20250.05995 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 81.55 · CH₄ 0.0011 · N₂O 0.00011US EPA Emission Factors Hub 2025Table 1
Wood and wood residualsFuels — biomassStationary combustion · Biomass (solid)Biogenic CO2: reported separately, excluded from CO2eUnited States · 202520.223 kg CO₂e per short tonAR5 · Scope 1CO₂ 1,640 · CH₄ 0.126 · N₂O 0.063US EPA Emission Factors Hub 2025Table 1 (heat content 17.48 mmBtu/short ton)
Wood and wood residualsFuels — biomassStationary combustion · Biomass (solid) · per energy (HHV)Biogenic CO2 excluded from CO2eUnited States · 20251.1556 kg CO₂e per mmBtuAR5 · Scope 1CO₂ 93.8 · CH₄ 0.0072 · N₂O 0.0036US EPA Emission Factors Hub 2025Table 1
Carbon dioxideRefrigerants and gasesCO2 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20131 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-125Refrigerants and gasesCHF2CF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20133,170 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-134Refrigerants and gasesCHF2CHF2 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20131,120 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-134aRefrigerants and gasesCH2FCF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20131,300 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-143Refrigerants and gasesCH2FCHF2 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 2013328 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-143aRefrigerants and gasesCH3CF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20134,800 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-152Refrigerants and gasesCH2FCH2F · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 201316 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-152aRefrigerants and gasesCH3CHF2 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 2013138 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-161Refrigerants and gasesCH3CH2F · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20134 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-227eaRefrigerants and gasesCF3CHFCF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20133,350 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-23Refrigerants and gasesCHF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 201312,400 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-236cbRefrigerants and gasesCH2FCF2CF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20131,210 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-236eaRefrigerants and gasesCHF2CHFCF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20131,330 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-236faRefrigerants and gasesCF3CH2CF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 20138,060 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-245caRefrigerants and gasesCH2FCF2CHF2 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 2013716 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-245faRefrigerants and gasesCHF2CH2CF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 2013858 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-32Refrigerants and gasesCH2F2 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 2013677 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11
HFC-365mfcRefrigerants and gasesCH3CF2CH2CF3 · 100-year GWP (AR5)kg CO2e per kg releasedGlobal · 2013804 kg CO₂e per kgAR5 · Scope 1US EPA Emission Factors Hub 2025Table 11

The sources in the library

Each source is loaded from the publisher's own files, with its edition and licence recorded. ESGTrack watches each publisher's page for a new edition.

SourcePublisherEditionFactorsBasisLicence
CO2 Baseline Database for the Indian Power SectorCentral Electricity Authority, Government of India · publisher page22.0 · 2026-08-01123CO2 onlyGovernment of India publication — free to use with attribution
GHG Emission Factors HubU.S. Environmental Protection Agency · publisher page2025 · 2025-01-15438AR5 (waste: AR4)U.S. Government work — public domain
2006 IPCC Guidelines for National Greenhouse Gas Inventories, Volume 2: EnergyIntergovernmental Panel on Climate Change · publisher page2006 (default factors) · 2006-04-01386AR5 and AR6 variantsIPCC — reproduced with attribution for inventory use
CO2 Baseline Database v22.0 — power-station dataCentral Electricity Authority, Government of India · publisher page22.0 · 2026-08-011,262CO2 onlyGovernment of India publication — free to use with attribution
Supply Chain Greenhouse Gas Emission Factors v1.3 (NAICS-6, spend-based)U.S. Environmental Protection Agency · publisher page1.3.0 · 2024-07-10985AR5U.S. Government work — public domain
Carbon intensity of electricity generation, by countryOur World in Data (Ember, Energy Institute) · publisher page2026 release · 2026-01-012,191Lifecycle (Ember)CC BY 4.0 — Our World in Data, based on Ember and the Energy Institute
2006 IPCC Guidelines and 2019 Refinement — industrial processes, waste and agriculture defaultsIntergovernmental Panel on Climate Change · publisher page2006 / 2019 (Tier 1 defaults) · 2019-05-014,892AR5 and AR6 variantsIPCC — reproduced with attribution; machine-readable values from bonsai-ipcc (MIT)

Not shown here: India Specific Road Transport Emission Factors (India GHG Program (WRI India, CII, TERI)), its publisher asks that its terms be checked before the values are republished. It is available inside the product.

How to read a factor

A factor only means something with its basis: the unit (per litre, per kilogram, per GJ on a net calorific value basis, per kWh), the gases it covers, the global warming potentials used to combine them, the region and the year. Two factors for "diesel" can legitimately differ by a few per cent because of the calorific value or density assumed. Record which one you used, and keep its reference.

For grid electricity in India, prefer the CEA's weighted average for the activity year if it is published before you report; otherwise the latest available, and say which. The Our World in Data figures are lifecycle intensities, useful for countries without a national factor but not a like-for-like substitute for one.

What this tool does not do

  • It shows bundled public sources only — not factors imported on an installation, not a company's private library, and not supplier-specific factors.
  • It does not choose a factor for you, convert units, or apply your fuel's measured calorific value — the product does those, with the decision recorded.
  • Publishers update their editions; the edition shown here is the one bundled, with its date.

Questions about the factor finder

Which sources are included?

The public sources bundled with ESGTrack: the IPCC 2006 Guidelines and the 2019 Refinement, the Central Electricity Authority's CO2 Baseline Database version 22.0 — both the grid averages and the power-station rates — the US EPA's GHG Emission Factors Hub (2025) and Supply Chain GHG Emission Factors v1.3, and Our World in Data's grid intensities for 212 countries. The India GHG Program's road transport factors are in the product but not shown here, because the programme asks that its terms are checked before its values are republished.

What do the columns mean?

CO₂, CH₄ and N₂O are kilograms of each gas per unit of activity; CO₂e combines them with the global warming potentials named in the GWP column (AR4, AR5, AR6, or "CO₂ only" where the publisher gives only carbon dioxide). The scope column is a hint about where the factor usually belongs; the reference is the publisher's table, so you can check the value at source.

Can I use these factors in my inventory?

They are published values, reproduced with their sources. Whether one fits your activity — the fuel, its calorific value, the year, the country, the basis — is a methodological decision for your inventory, which should record the factor used and why.

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Factors chosen by date, with the decision recorded

ESGTrack applies the factor in force for each month, keeps your own site and company factors first, converts units, and logs every change with its source.

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