Octane Number Calculator

Please select the species that you want to calculate; also add either vol%, mol% or both...

SpeciesDensity (kg/m^3)Carbon NumberHydrogen NumberOxygen NumberRONMONVolume%Mole%
1,2,4-Trimethylbenzene876.19120110101
1,3-Dimethylbenzene864.348100104102
1,4-Dimethylbenzene861.28100104102
1-Butene625.5248097.480.8
1-Hexene67361207764
2-Methylhexane679716042.446.4
Benzene879660105102.8
Butylcyclohexane803.44102005151
Cyclohexane778.8161208377.2
Cyclopentane745.425100100.184.9
Cyclopropane6783606460
Ethane546.42601.60.05
Ethanol78926110890.7
Ethylbenzene867.038100100.897.9
iso-Butane6304100110.197.6
iso-Butene603410000
iso-Hexane653.31614073.473.4
iso-Octane692.148180100100
iso-Pentane620.21512092.390.3
Methane421140120120
Methylcyclohexane769.57714074.871.1
n-Butane601.441009489.6
n-Decane730.5210220-30-30
N-Dodecane749.5412260-40-40
n-Heptane683.94716000
n-Hexane659.5614024.826
n-Nonane718.149200-20-20
n-Octane702.418180-20-20
n-Pentane625.9512062.662
n-Propane49338097.197.1
Propylcyclohexane793.97918017.814
Toluene867.03780118103





References

[1] Modified Linear-by-Volume is implemented based on the following paper:
N. Morgan, A. Smallbone, A. Bhave, M. Kraft, R. Cracknell, G. Kalghatgi
"Mapping surrogate gasoline compositions into RON/MON space" Combustion and Flame. 157 (2010) 1122–1131.
DOI:10.1016/j.combustflame.2010.02.003 ( doi:10.1016/j.combustflame.2010.02.003 )