Nitrogen Equivalent Calculator

Enter the desired gas and flow rate to calculate the N₂ equivalent and find matching controllers.

N₂ Equivalent Flow
sccm N₂
Gas
Desired flow
N₂ Equivalent (sccm) = Desired Flow (sccm) × Brooks Conversion Factor (CF):
N₂ Equivalent (sccm) = Desired Flow (sccm) × Brooks Conversion Factor (CF)
Products within ±500 sccm of the N₂ equivalent are shown as candidates.
Gas Conversion Factor Reference
Gas Name Formula Brooks CF
1,1-Difluoro-1-Chloroethane C2H3ClF 0.341
1,1-Difluoroethane CH3CHF2 0.415
1,1-Difluoroethylene CH2:CF2 0.458
1,2-Dichlorotetrafluoroethane C2Cl2F4 0.231
1,3-Butadiene C4H6 0.354
1-Butene C4H8 0.32
2,2-Dimethylpropane C(CH3)4 0.247
3-Methyl-1-butene C5H10 0.252
Acetylene (Ethyne) C2H2 0.615
Air Mixture 0.998
Allene C3H4 0.478
Ammonia NH3 0.786
Argon Ar 1.395
Arsine AsH3 0.754
Boron Trichloride BCl3 0.443
Boron Trifluoride BF3 0.579
Bromotrifluoroethylene C2BrF3 0.326
Bromotrifluoromethane CBrF3 0.412
Butane C4H10 0.257
Carbon Dioxide CO2 0.773
Carbon Disulfide CS2 0.638
Carbon Monoxide CO 0.995
Carbon Tetrafluoride CF4 0.44
Carbonyl Fluoride COF2 0.567
Carbonyl Sulfide COS 0.68
Chlorine Cl2 0.876
Chlorine Dioxide ClO2 0.693
Chlorine Trifluoride ClF3 0.433
Chlorodifluoromethane CHClF2 0.505
Chloropentafluoroethane C2ClF5 0.243
Chlorotrifluoroethylene C2ClF3 0.337
Chlorotrifluoromethane CClF3 0.43
CIS-2-Butene C4H8 0.32
Cyanogen (CN)2 0.498
Cyanogen Chloride ClCN 0.618
Cyclobutane C4H8 0.387
Cyclopropane C3H6 0.505
Deuterium D2 0.995
Diborane B2H6 0.448
Dichlorodifluoromethane CCl2F2 0.39
Dichlorofluoromethane CHCl2F 0.456
Dichlorosilane SiH2Cl2 0.442
Difluoromethane CF2H2 0.627
Dimethylamine (CH3)2N 0.37
Dimethylether (CH3)2O 0.247
Disilane Si2H6 0.332
Ethane C2H6 0.394
Ethyl Chloride C2H5Cl 0.408
Ethylacetylene C4H6 0.365
Ethylene C2H4 0.619
Ethylene Oxide C2H4O 0.589
Fluorine F2 0.924
Fluoroform CHF3 0.529
Germane GeH4 0.649
Helium He 1.386
Hexafluoro 1,3-Butadiene C4F6 0.213
Hexafluoroacetone C3F6O 0.219
Hexafluoroethane C2F6 0.255
Hexafluoropropylene (HFP) C3F6 0.249
Hydrogen H2 1.008
Hydrogen Bromide HBr 0.987
Hydrogen Chloride HCl 0.983
Hydrogen Fluoride HF 0.998
Hydrogen Iodide HI 0.953
Hydrogen Selenide H2Se 0.837
Hydrogen Sulfide H2S 0.85
Isobutane C4H10 0.26
Isobutylene C4H8 0.289
Krypton Kr 1.382
Methane (Natural Gas) CH4 0.763
Methyl Bromide CH3Br 0.646
Methyl Chloride CH3Cl 0.687
Methyl Fluoride CH3F 0.761
Methyl Mercaptan CH4S 0.588
Methyl Vinyl Ether C3H6O 0.377
Methylacetylene C3H4 0.473
Monoethylamine C2H7 0.359
Monomethylamine CH3NH2 0.565
Neon Ne 1.398
Nitric Oxide NO 0.995
Nitrogen N2 1
Nitrogen Trifluoride NF3 0.501
Nitrogen Trioxide N2O3 0.443
Nitrosyl Chloride NOCl 0.644
Nitrous Oxide N2O 0.752
Octofluorocyclobutane (LAM) C4F8 0.169
Oxygen O2 0.988
Oxygen Difluoride OF2 0.672
Ozone O3 0.738
Perchloryl Fluoride ClO3F 0.448
Perfluoro-2-Butene C4F8 0.268
Perfluorobutane C4F10 0.738
Perfluoropropane C3F8 0.179
Phosgene COCl2 0.504
Phosphine PH3 0.783
Phosphorous Pentafluoride PF5 0.346
Phosphorous Trifluoride PF3 0.495
Propane C3H8 0.343
Propylene (Propene) C3H6 0.401
Silane SiH4 0.625
Silicon Tetrafluoride SiF4 0.395
Sulfur Dioxide SO2 0.728
Sulfur Hexafluoride SF6 0.27
Sulfur Tetrafluoride SF4 0.353
Sulfuryl Fluoride SO2F2 0.423
Tetrachloromethane CCl4 0.344
Tetrafluoroethylene (TFE) C2F4 0.361
Tetrafluorohydrazine N2F4 0.367
Trichlorofluoromethane CCl3F 0.374
Trimethylamine (CH3)3N 0.316
Uranium Hexafluoride UF6 0.22
Vinyl Bromide C2H3Br 0.524
Vinyl Chloride C2H3Cl 0.542
Vinyl Fluoride C2H3F 0.576
Xenon Xe 1.383
1,1,2-Trichloro-1,1,2-Trifluoroethane C2Cl3F3 0.231
1,2-Dibromotetrafluoroethane C2Br2F4 0.215
1,2-Dichloroethane C2H4Cl2 0.382
Bromine Pentafluoride BrF5 0.287
Bromine Trifluoride BrF3 0.439
Carbon Tetrachloride CCl4 0.344
Chloroform (Trichloromethane) CHCl3 0.442
Hexane C6H14 0.204
Hydrogen Cyanide HCN 0.744
Iodine Pentafluoride IF5 0.283
Isopentane C5H12 0.211
Nickel Carbonyl Ni(CO)4 0.212
Nitrogen Dioxide NO2 0.758
Pentane (n-Pentane) C5H12 0.212
Silicon Tetrachloride SiCl4 0.31
Trichlorosilane SiHCl3 0.329
Tungsten Hexafluoride WF6 0.227
Water Vapor H2O 0.861
50% PH3 / 50% SiH4 (mixture) Mixture 0.668