Carbon and energy unit converters
Every converter shows the value it uses and where it comes from: IPCC global warming potentials as tabulated by the GHG Protocol, UK government refrigerant factors (DESNZ 2026), and NIST definitions for energy and mass units.
Greenhouse gases to CO₂e
Mass of a gas multiplied by its 100-year global warming potential.
- Carbon dioxide
- Methane – fossil
- Methane – non-fossil
- Nitrous oxide
- Sulfur hexafluoride
- Nitrogen trifluoride
- HFC-134a
- HFC-32
Bromocarbons, Hydrobromocarbons and Halons (16)
- 1-bromopropane (CH3CH2CH2Br) to CO₂e
- 1,2-dibromoethane (CH2BrCH2Br) to CO₂e
- 2-bromopropane (CH3CHBrCH3) to CO₂e
- Bromoethane (CH3CH2Br) to CO₂e
- Halon-1011 (CH2BrCl) to CO₂e
- Halon-1201 (CHBrF2) to CO₂e
- Halon-1202 (CBr2F2) to CO₂e
- Halon-1211 (CBrClF2) to CO₂e
- Halon-1301 (CBrF3) to CO₂e
- Halon-2301 (CH2BrCF3) to CO₂e
- Halon-2311 (CHBrClCF3) to CO₂e
- Halon-2401 (CHBrFCF3) to CO₂e
- Halon-2402 (CBrF2CBrF2) to CO₂e
- Methyl bromide (CH3Br) to CO₂e
- Methylene bromide (CH2Br2) to CO₂e
- Tribromomethane (CHBr3) to CO₂e
Halogenated Alcohols, Ethers, Furans, Aldehydes and Ketones (112)
- 1-chloro-2-ethen-oxyethane (ClCH2CH2OCH=CH2) to CO₂e
- 1-ethoxy-1,1,2,2,3,3,3-heptafluoropropane (CF3CF2CF2OCH2CH3) to CO₂e
- 1-ethoxy-1,1,2,3,3,3-hexafluoropropane (CF3CHFCF2OCH2CH3) to CO₂e
- 1,1-difluoroethyl 2,2,2-trifluoroacetate (CF3COOCF2CH3) to CO₂e
- 1,1-difluoroethyl carbonofluoridate (FCOOCF2CH3) to CO₂e
- 1,1,1-trifluoro-butan-2-one (CF3COCH2CH3) to CO₂e
- 1,1,1-trifluoro-propan-2-one (CF3COCH3) to CO₂e
- 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2,2-tetrafluoroethoxy)propane (CF3CF2CF2OCHFCF3) to CO₂e
- 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)pentan-3-one (CF3CF2COCF(CF3)2) to CO₂e
- 1,1,1,3,3,3-hexafluoropropan-2-ol ((CF3)2CHOH) to CO₂e
- 1,1,1,3,3,3-hexafluoropropan-2-yl (HCOOCH(CF3)2) to CO₂e
- 1,1,2-trifluoro-2-(trifluoromethoxy)-ethane (CHF2CHFOCF3) to CO₂e
- 1,1,2,2-tetrafluoro-1-(fluoromethoxy)ethane (CH2FOCF2CF2H) to CO₂e
- 1,1,2,2-tetrafluoro-3-methoxypropane (CHF2CF2CH2OCH3) to CO₂e
- 1,1,3,3,4,4,6,6,7,7,9,9,10,10,12,12-hexa-decafluoro-2,5,8,11-Tetraoxadodecane (HCF2O(CF2CF2O)3CF2H) to CO₂e
- 1,2,2,2-tetrafluoroethyl formate (HCOOCHFCF3) to CO₂e
- 2-fluoroethanol (CH2FCH2OH) to CO₂e
- 2,2-difluoroethanol (CHF2CH2OH) to CO₂e
- 2,2,2-trifluoroethanol (CF3CH2OH) to CO₂e
- 2,2,2-trifluoroethyl 2,2,2-trifluoroacetate (CF3COOCH2CF3) to CO₂e
- 2,2,2-trifluoroethyl formate (CF3CH2OCHO) to CO₂e
- 2,2,3,3-tetrafluoropropan-1-ol (CHF2CF2CH2OH) to CO₂e
- 2,2,3,3,3-pentafluoropropan-1-ol (CF3CF2CH2OH) to CO₂e
- 2,2,3,3,4,4,4-heptafluorobutan-1-ol (CF3CF2CF2CH2OH) to CO₂e
- 2,2,3,3,4,4,5,5-octafluorocyclopentan-1-ol (cyc (-(CF2)4CH(OH)-)) to CO₂e
- 2,2,3,4,4,4-hexafluorobutan-1-ol (CF3CHFCF2CH2OH) to CO₂e
- 3,3,3-trifluoropropan-1-ol (CF3CH2CH2OH) to CO₂e
- 3,3,3-trifluoropropanal (CF3CH2CHO) to CO₂e
- 3,3,3-trifluoropropyl formate (HCOOCH2CH2CF3) to CO₂e
- 3,3,4,4,5,5,6,6,7,7,7-undecafluoroheptan-1-ol (CF3(CF2)4CH2CH2OH) to CO₂e
- 3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-pentadecafluorononan-1-ol (CF3(CF2)6CH2CH2OH) to CO₂e
- 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11, (CF3(CF2)8CH2CH2OH) to CO₂e
- 4,4,4-trifluorobutan-1-ol (CF3(CH2)2CH2OH) to CO₂e
- 11,11-nonadecafluoroundecan-1-ol 2-chloro-1,1,2-trifluoro-1-methoxyethane (CH3OCF2CHClF) to CO₂e
- Difluoro(fluoromethoxy)methane (CH2FOCHF2) to CO₂e
- Difluoromethyl 2,2,2-trifluoroacetate (CF3COOCHF2) to CO₂e
- Ethenyl 2,2,2-trifluoroacetate (CF3COOCH=CH2) to CO₂e
- Ethyl 2,2,2-trifluoroacetate (CF3COOCH2CH3) to CO₂e
- Fluoro(fluoromethoxy)methane (CH2FOCH2F) to CO₂e
- Fluoro(methoxy)methane (CH3OCH2F) to CO₂e
- Fluroxene (CF3CH2OCH=CH2) to CO₂e
- formate Perfluorobutyl acetate (CH3COOCF2CF2CF2CF3) to CO₂e
- Formic acid;1,1,1,3,3,3-hexafluoro-propan-2-ol ((CF3)2CHOCHO) to CO₂e
- HCFE-235ca2 (CHF2OCF2CHFCl) to CO₂e
- HCFE-235da2 (CHF2OCHClCF3) to CO₂e
- HFE-43-10pccc124 (CHF2OCF2OCF2CF2OCHF2) to CO₂e
- HFE-125 (CHF2OCF3) to CO₂e
- HFE-134 (CHF2OCHF2) to CO₂e
- HFE-143a (CH3OCF3) to CO₂e
- HFE-216 (CF3OCF=CF2) to CO₂e
- HFE-227ea (CF3CHFOCF3) to CO₂e
- HFE-236ca (CHF2OCF2CHF2) to CO₂e
- HFE-236ca12 (CHF2OCF2OCHF2) to CO₂e
- HFE-236ea2 (CHF2OCHFCF3) to CO₂e
- HFE-236fa (CF3CH2OCF3) to CO₂e
- HFE-245cb2 (CF3CF2OCH3) to CO₂e
- HFE-245fa1 (CHF2CH2OCF3) to CO₂e
- HFE-245fa2 (CHF2OCH2CF3) to CO₂e
- HFE-254cb1 (CH3OCF2CHF2) to CO₂e
- HFE-254cb2 (CH3OCF2CHF2) to CO₂e
- HFE-263m1 (CF3OCH2CH3) to CO₂e
- HFE-263mf (HFE-263fb2) (CF3CH2OCH3) to CO₂e
- HFE-329mcc2 (CHF2CF2OCF2CF3) to CO₂e
- HFE-329me3 (CF3CFHCF2OCF3) to CO₂e
- HFE-338mcf2 (CF3CH2OCF2CF3) to CO₂e
- HFE-338mmz1 ((CF3)2CHOCHF2) to CO₂e
- HFE-338pcc13 (CHF2OCF2CF2OCHF2) to CO₂e
- HFE-347mcc3 (CH3OCF2CF2CF3) to CO₂e
- HFE-347mcf2 (CHF2CH2OCF2CF3) to CO₂e
- HFE-347mmy1 ((CF3)2CFOCH3) to CO₂e
- HFE-347mmz1 ((CF3)2CHOCH2F) to CO₂e
- HFE-347pcf2 (CHF2CF2OCH2CF3) to CO₂e
- HFE-356mec3 (CH3OCF2CHFCF3) to CO₂e
- HFE-356mff2 (CF3CH2OCH2CF3) to CO₂e
- HFE-356mmz1 ((CF3)2CHOCH3) to CO₂e
- HFE-356pcc3 (CH3OCF2CF2CHF2) to CO₂e
- HFE-356pcf2 (CHF2CH2OCF2CHF2) to CO₂e
- HFE-356pcf3 (CHF2OCH2CF2CHF2) to CO₂e
- HFE-365mcf2 (CF3CF2OCH2CH3) to CO₂e
- HFE-365mcf3 (CF3CF2CH2OCH3) to CO₂e
- HFE-374pc2 (CHF2CF2OCH2CH3) to CO₂e
- HFE-449s1 (C4F9OCH3) to CO₂e
- HFE-449sl (C4F9OCH3) to CO₂e
- HFE-569sf2 (C4F9OC2H5) to CO₂e
- HFE-7300 to CO₂e
- HFE-7500 (n-C3F7CFOC2H5CF(CF3)2) to CO₂e
- HG-02 (CHF2(OCF2CF2)2OCHF2) to CO₂e
- HG-03 (CHF2(OCF2CF2)3OCHF2) to CO₂e
- HG-04 (CHF2O(CF2CF2O)4CHF2) to CO₂e
- HG-20 (HF2C – (OCF2)2 – OCF2H) to CO₂e
- HG-21 to CO₂e
- HG-30 (HF2C – (OCF2)3 – OCF2H) to CO₂e
- HG’ -01 (CH3OCF2CF2OCH3) to CO₂e
- i-HFE-7100 ((CF3)2CFCF2OCH3) to CO₂e
- i-HFE-7200 ((CF3)2CFCF2OCH2CH3) to CO₂e
- Methyl 2,2-difluoroacetate (HCF2COOCH3) to CO₂e
- Methyl 2,2,2-trifluoroacetate (CF3COOCH3) to CO₂e
- Methyl carbonofluoridate (FCOOCH3) to CO₂e
- Methyl-perfluoro-heptene-ethers (CH3OC7F13) to CO₂e
- n-HFE-7100 (CF3CF2CF2CF2OCH3) to CO₂e
- n-HFE-7200 (n-C4F9OC2H5) to CO₂e
- Octafluoro-oxolane (c-C4F8O) to CO₂e
- Perfluorobutyl formate (HCOOCF2CF2CF2CF3) to CO₂e
- Perfluoroethyl acetate (CH3COOCF2CF3) to CO₂e
- Perfluoroethyl formate (CF3CF2OCHO) to CO₂e
- Perfluoropropyl acetate (CH3COOCF2CF2CF3) to CO₂e
- Perfluoropropyl formate (HCOOCF2CF2CF3) to CO₂e
- PFPMIE to CO₂e
- Prop-2-enyl-2,2,2-trifluoroacetate (CF3COOCH2CH=CH2) to CO₂e
- Trifluoro(fluoromethoxy)methane (CH2FOCF3) to CO₂e
- Trifluoromethyl acetate (CH3COOCF3) to CO₂e
- Trifluoromethyl formate (HCOOCF3) to CO₂e
Chlorocarbons and Hydrochlorocarbons (11)
- 1-chlorobutane (CH3(CH2)2CH2Cl) to CO₂e
- 1,1,2-trichloroethene (CHCl=CCl2) to CO₂e
- 1,1,2,2-tetrachloroethene (CCl2=CCl2) to CO₂e
- 1,2-dichloroethane (CH2ClCH2Cl) to CO₂e
- 2-chloropropane (CH3CHClCH3) to CO₂e
- Carbon tetrachloride (CCl4) to CO₂e
- Chloroethane (CH3CH2Cl) to CO₂e
- Chloroform (CHCl3) to CO₂e
- Methyl chloride (CH3Cl) to CO₂e
- Methyl chloroform (CH3CCl3) to CO₂e
- Methylene chloride (CH2Cl2) to CO₂e
Hydrofluorocarbons (includes unsaturated hydrofluorocarbons) (50)
- 1,1,2,2,3,3,4- to CO₂e
- 1,3,3,4,4-pentafluorocyclobutene (cyc (-CH=CFCF2CF2-)) to CO₂e
- 3,3,3-trifluoro-2-(trifluoromethyl) ((CF3)2C=CH2) to CO₂e
- 3,3,4,4-tetrafluorocyclobutene (cyc (-CH=CHCF2CF2-)) to CO₂e
- 3,3,4,4,5,5,6,6,6-nonafluorohex-1-ene (n-C4F9CH=CH2) to CO₂e
- 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooct-1-ene (n-C6F13CH=CH2) to CO₂e
- 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodec-1-ene (n-C8F17CH=CH2) to CO₂e
- cyclopentene (4s,5s)-1,1,2,2,3,3,4,5- to CO₂e
- heptafluorocyclopentane 1,3,3,4,4,5,5-heptafluoro- to CO₂e
- HFC-23 (CHF3) to CO₂e
- HFC-32 (CH2F2) to CO₂e
- HFC-41 (CH3F) to CO₂e
- HFC-43-10mee (CF3CHFCHFCF2CF3) to CO₂e
- HFC-125 (CHF2CF3) to CO₂e
- HFC-134 (CHF2CHF2) to CO₂e
- HFC-134a (CH2FCF3) to CO₂e
- HFC-143 (CH2FCHF2) to CO₂e
- HFC-143a (CH3CF3) to CO₂e
- HFC-152 (CH2FCH2F) to CO₂e
- HFC-152a (CH3CHF2) to CO₂e
- HFC-161 (CH3CH2F) to CO₂e
- HFC-227ca (CF3CF2CHF2) to CO₂e
- HFC-227ea (CF3CHFCF3) to CO₂e
- HFC-236cb (CH2FCF2CF3) to CO₂e
- HFC-236ea (CHF2CHFCF3) to CO₂e
- HFC-236fa (CF3CH2CF3) to CO₂e
- HFC-245ca (CH2FCF2CHF2) to CO₂e
- HFC-245cb (CF3CF2CH3) to CO₂e
- HFC-245ea (CHF2CHFCHF2) to CO₂e
- HFC-245eb (CH2FCHFCF3) to CO₂e
- HFC-245fa (CHF2CH2CF3) to CO₂e
- HFC-263fb (CH3CH2CF3) to CO₂e
- HFC-272ca (CH3CF2CH3) to CO₂e
- HFC-329p (CHF2CF2CF2CF3) to CO₂e
- HFC-365mfc (CH3CF2CH2CF3) to CO₂e
- HFO-1123 (CHF=CF2) to CO₂e
- HFO-1132a (CH2=CF2) to CO₂e
- HFO-1141 (CH2=CHF) to CO₂e
- HFO-1225ye(E) ((E)-CF3CF=CHF) to CO₂e
- HFO-1225ye(Z) ((Z)-CF3CF=CHF) to CO₂e
- HFO-1234yf (CF3CF=CH2) to CO₂e
- HFO-1234ze(E) ((E)-CF3CH=CHF) to CO₂e
- HFO-1234ze(Z) ((Z)-CF3CH=CHF) to CO₂e
- HFO-1243zf (CF3CH=CH2) to CO₂e
- HFO-1336mzz(E) ((E)-CF3CH=CHCF3) to CO₂e
- HFO-1336mzz(Z) ((Z)-CF3CH=CHCF3) to CO₂e
- HFO-1345zfc (CF3CF2CH=CH2) to CO₂e
- HFO-1447fz (CF3(CF2)2CH=CH2) to CO₂e
- octafluorocyclopentane HFO-1438ezy(E) ((E)-(CF3)2CFCH=CHF) to CO₂e
- prop-1-ene 1,1,2,2,3,3-hexafluorocyclopentane to CO₂e
Major Greenhouse Gases (6)
Chlorofluorocarbons (14)
- CFC 1112 (CClF=CClF) to CO₂e
- CFC 1112a (CCl2=CF2) to CO₂e
- CFC-11 (CCl3F) to CO₂e
- CFC-12 (CCl2F2) to CO₂e
- CFC-13 (CClF3) to CO₂e
- CFC-112 (CCl2FCCl2F) to CO₂e
- CFC-112a (CCl3CClF2) to CO₂e
- CFC-113 (CCl2FCClF2) to CO₂e
- CFC-113a (CCl3CF3) to CO₂e
- CFC-114 (CClF2CClF2) to CO₂e
- CFC-114a (CCl2FCF3) to CO₂e
- CFC-115 (CClF2CF3) to CO₂e
- E-R316c to CO₂e
- Z-R316c to CO₂e
Hydrochlorofluorocarbon (includes unsaturated species) (21)
- HCFC-21 (CHCl2F) to CO₂e
- HCFC-22 (CHClF2) to CO₂e
- HCFC-31 (CH2ClF) to CO₂e
- HCFC-121 (CHCl2CCl2F) to CO₂e
- HCFC-122 (CHCl2CClF2) to CO₂e
- HCFC-122a (CHClFCCl2F) to CO₂e
- HCFC-123 (CHCl2CF3) to CO₂e
- HCFC-123a (CHClFCClF2) to CO₂e
- HCFC-124 (CHClFCF3) to CO₂e
- HCFC-124a (CHF2CClF2) to CO₂e
- HCFC-132 (CHClFCHClF) to CO₂e
- HCFC-132a (CHCl2CHF2) to CO₂e
- HCFC-132c (CH2FCCl2F) to CO₂e
- HCFC-133a (CH2ClCF3) to CO₂e
- HCFC-141 (CH2ClCHClF) to CO₂e
- HCFC-141b (CH3CCl2F) to CO₂e
- HCFC-142b (CH3CClF2) to CO₂e
- HCFC-225ca (CHCl2CF2CF3) to CO₂e
- HCFC-225cb (CHClFCF2CClF2) to CO₂e
- HCFO-1233zd(E) ((E)-CF3CH=CHCl) to CO₂e
- HCFO-1233zd(Z) ((Z)-CF3CH=CHCl) to CO₂e
Fully Fluorinated Species (24)
- Heptacosafluorotributylamine (N(CF2CF2CF2CF3)3) to CO₂e
- Heptafluoroisobutyronitrile ((CF3)2CFCN) to CO₂e
- Hexafluoro-cyclobutene (cyc (-CF=CFCF2CF2-)) to CO₂e
- Octafluoro-1-butene (CF3CF2CF=CF2) to CO₂e
- Octafluoro-2-butene (CF3CF=CFCF3) to CO₂e
- Octafluoro-cyclopentene to CO₂e
- Pentadecafluorotriethylamine (N(C2F5)3) to CO₂e
- Perfluorotripentylamine (N(CF2CF2CF2CF2CF3)3) to CO₂e
- Perfluorotripropylamine (N(CF2CF2CF3)3) to CO₂e
- PFC-14 (CF4) to CO₂e
- PFC-31-10 (n-C4F10) to CO₂e
- PFC-41-12 (n-C5F12) to CO₂e
- PFC-51-14 (n-C6F14) to CO₂e
- PFC-61-16 (n-C7F16) to CO₂e
- PFC-71-18 (n-C8F18) to CO₂e
- PFC-91-18 (C10F18) to CO₂e
- PFC-116 (C2F6) to CO₂e
- PFC-218 (C3F8) to CO₂e
- PFC-1114 (CF2=CF2) to CO₂e
- PFC-1216 (CF3CF=CF2) to CO₂e
- PFC-C-318 (PFC-318) (cyc (-CF2CF2CF2CF2-)) to CO₂e
- PFC-c216 (c-C3F6) to CO₂e
- Sulfuryl fluoride (SO2F2) to CO₂e
- Trifluoromethylsulfur pentafluoride (SF5CF3) to CO₂e
Refrigerants and blends to CO₂e
UK government conversion factors (DESNZ 2026) per kilogram released.
- CFC-11/R11 = trichlorofluoromethane
- CFC-12/R12 = dichlorodifluoromethane
- Dimethylether
- HCFC-22/R22 = chlorodifluoromethane
- HFC-43-I0mee
- HFE-43-10pccc124 (H-Galden1040x)
- HFE-236ca12 (HG-10)
- HFE-338pcc13 (HG-01)
- HFE-449sl (HFE-7100)
- HFE-569sf2 (HFE-7200)
- Methane
- Perfluorobutane (PFC-3-1-10)
- Perfluorocyclobutane (PFC-318)
- Perfluorocyclopropane
- Perfluoroethane (PFC-116)
- Perfluorohexane (PFC-5-1-14)
- Perfluoromethane (PFC-14)
- Perfluoropentane (PFC-4-1-12)
- Perfluoropropane (PFC-218)
- PFC-9-1-18
- R170 = ethane
- R290 = propane
- R401A
- R401B
- R401C
- R402A
- R402B
- R403A
- R403B
- R404A
- R405A
- R406A
- R407A
- R407B
- R407C
- R407D
- R407E
- R407F
- R408A
- R409A
- R409B
- R410A
- R410B
- R411A
- R411B
- R412A
- R413A
- R414A
- R414B
- R415A
- R415B
- R416A
- R417A
- R417B
- R417C
- R418A
- R419A
- R419B
- R420A
- R421A
- R421B
- R422A
- R422B
- R422C
- R422D
- R422E
- R423A
- R424A
- R425A
- R426A
- R427A
- R428A
- R429A
- R430A
- R431A
- R432A
- R433A
- R433B
- R433C
- R434A
- R435A
- R436A
- R436B
- R437A
- R438A
- R439A
- R440A
- R441A
- R442A
- R443A
- R444A
- R445A
- R500
- R501
- R502
- R503
- R504
- R505
- R506
- R507A
- R508A
- R508B
- R509A
- R510A
- R511A
- R512A
- R600 = butane
- R600A = isobutane
- R601 = pentane
- R601A = isopentane
- R1234yf*
- R1234ze*
- R1270 = propene
- Sulphur hexafluoride (SF6)
- Trifluoromethyl sulphur pentafluoride