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# Methane - Density and Specific Weight vs. Temperature and Pressure

## Online calculator, figures and tables showing density and specific weight of methane, CH4, at temperatures ranging from -160 to 725 °C (-260 to 1300 °F) at atmospheric and higher pressure - Imperial and SI Units.

Density, ρ, has units typically [kg/m3] or [lb/ft3], and is defined by the ratio of the mass to the volume of a substance:

ρ = m/V                      

where     m = mass, units typically [kg] or [lb]
V = volume, units typically [m3] or [ft3]

Specific weight, γ, has units typically [N/m3] or [lbf/ft3]  is defined by the ratio of the weight to the volume of a substance:

γ = (m * g)/V = ρ * g                

where    g = acceleration due to gravity, units typically [m/s2] and value on Earth usually given as 9.80665 [m/s2] or 32.17405 [ft/s2]

Tabulated values of methane density and specific weight at given temperature and pressure (SI and Imperial units) as well as density units conversion are given below the figures.

### Online Methane Density Calculator

The calculator below can be used to estimate the density and specific weight of gaseous methane at given temperature and pressure.
The output density is given as kg/m3, lb/ft3, lb/gal(US liq) and sl/ft3.  Specific weight is given as N/m3 and lbf/ ft3.

Choose the actual unit of temperature:
Choose the actual pressure:

See also other properties of Methane at varying temperature and pressure: Dynamic and kinematic viscosity, Specific heat (Heat capacity), Thermal conductivity and Prandtl number, and as well as density and specific weight of acetone, air, ammonia, argon, benzene, butanecarbon dioxide, carbon monoxide, ethane, ethanol, ethylene, helium, hydrogen, methanol, nitrogen, oxygen, pentane, propane, toluene and water.
Density of crude oil, Density of fuel oils, Density of lubricating oil and Density of jet fuel as function of temperature.   Density and specific weight of methane at given temperatures and pressures:

For full table with Density and Specific Weight- rotate the screen!

 State Temperature Pressure Density Specific weight [K] [°C] [°F] [MPa] [bara] [psia] [mol/dm3] [g/l], [kg/m3] [lbm/ft3] [sl/ft3*10-3] [N/m3] [lbf/ft3] Liquid 100 -173 -280 0.1 1 14.5 27.36 438.9 27.40 851.6 4304 27.40 111.51 -161.6 -259.0 0.1 1 14.5 26.34 422.6 26.38 819.9 4144 26.38 Gas 111.51 -161.6 -259.0 0.1 1 14.5 0.1119 1.795 0.1120 3.482 17.60 0.1120 140 -133 -208 0.1 1 14.5 0.08746 1.403 0.08759 2.722 13.76 0.08759 180 -93.2 -136 0.1 1 14.5 0.06738 1.081 0.06748 2.097 10.60 0.06748 200 -73.2 -99.7 0.1 1 14.5 0.06052 0.9708 0.06061 1.884 9.521 0.06061 220 -53.2 -63.7 0.1 1 14.5 0.05493 0.8812 0.05501 1.710 8.642 0.05501 240 -33.2 -27.7 0.1 1 14.5 0.05030 0.8069 0.05037 1.566 7.913 0.05037 260 -13.2 8.3 0.1 1 14.5 0.04639 0.7442 0.04646 1.444 7.298 0.04646 280 6.9 44.3 0.1 1 14.5 0.04305 0.6906 0.04311 1.340 6.772 0.04311 300 26.9 80.3 0.1 1 14.5 0.04016 0.6442 0.04022 1.250 6.318 0.04022 320 46.9 116 0.1 1 14.5 0.03764 0.6038 0.03769 1.172 5.921 0.03769 340 66.9 152 0.1 1 14.5 0.03541 0.5681 0.03547 1.102 5.571 0.03547 360 86.9 188 0.1 1 14.5 0.03344 0.5364 0.03349 1.041 5.260 0.03349 400 127 260 0.1 1 14.5 0.03008 0.4826 0.03013 0.9364 4.732 0.03013 500 227 440 0.1 1 14.5 0.02406 0.3859 0.02409 0.7488 3.784 0.02409 600 327 620 0.1 1 14.5 0.02004 0.3215 0.02007 0.6238 3.153 0.02007 700 427 800 0.1 1 14.5 0.01718 0.2756 0.01721 0.5348 2.703 0.01721 800 527 980 0.1 1 14.5 0.01503 0.2411 0.01505 0.4678 2.364 0.01505 900 627 1160 0.1 1 14.5 0.01336 0.2143 0.01338 0.4158 2.102 0.01338 1000 727 1340 0.1 1 14.5 0.01202 0.1929 0.01204 0.3743 1.892 0.01204 Liquid 100 -173 -280 1 10 145 27.40 439.6 27.44 853.0 4311 27.44 149.14 -124.0 -191.2 1 10 145 22.42 359.6 22.45 697.7 3526 22.45 Gas 149.14 -124.0 -191.2 1 10 145 0.9785 15.70 0.9800 30.46 153.9 0.9800 160 -113 -172 1 10 145 0.8708 13.97 0.8721 27.11 137.0 0.8721 180 -93.2 -136 1 10 145 0.7362 11.81 0.7373 22.92 115.8 0.7373 200 -73.2 -99.7 1 10 145 0.6436 10.33 0.6446 20.03 101.3 0.6446 220 -53.2 -63.7 1 10 145 0.5745 9.217 0.5754 17.88 90.39 0.5754 240 -33.2 -27.7 1 10 145 0.5201 8.344 0.5209 16.19 81.83 0.5209 260 -13.2 8.3 1 10 145 0.4759 7.634 0.4766 14.81 74.86 0.4766 280 6.9 44.3 1 10 145 0.4390 7.043 0.4397 13.67 69.07 0.4397 300 26.9 80.3 1 10 145 0.4078 6.541 0.4084 12.69 64.15 0.4084 320 46.9 116 1 10 145 0.3809 6.110 0.3814 11.86 59.92 0.3814 340 66.9 152 1 10 145 0.3574 5.733 0.3579 11.12 56.22 0.3579 360 86.9 188 1 10 145 0.3367 5.402 0.3372 10.48 52.98 0.3372 400 127 260 1 10 145 0.3021 4.845 0.3025 9.402 47.52 0.3025 500 227 440 1 10 145 0.2406 3.859 0.2409 7.488 37.85 0.2409 600 327 620 1 10 145 0.2001 3.210 0.2004 6.229 31.48 0.2004 Liquid 100 -173 -280 5 50 725 27.59 442.5 27.63 858.7 4340 27.63 Supercritical phase 200 -73.2 -99.7 5 50 725 5.471 87.76 5.479 170.3 860.6 5.479 250 -23.2 -9.7 5 50 725 3.117 50.00 3.121 97.02 490.3 3.121 300 26.9 80.3 5 50 725 2.180 34.97 2.183 67.85 342.9 2.183 350 76.9 170 5 50 725 1.745 28.00 1.748 54.33 274.6 1.748 400 127 260 5 50 725 1.533 24.60 1.536 47.73 241.2 1.536 500 227 440 5 50 725 1.201 19.27 1.203 37.39 189.0 1.203 600 327 620 5 50 725 0.9928 15.93 0.9943 30.90 156.2 0.9943 Liquid 100 -173 -280 10 100 1450 27.80 446.0 27.84 865.4 4374 27.84 Supercritical phase 200 -73.2 -100 10 100 1450 16.59 266.2 16.62 516.5 2610 16.62 240 -33.2 -27.7 10 100 1450 8.004 128.4 8.016 249.1 1259 8.016 260 -13.2 8.3 10 100 1450 6.296 101.0 6.305 196.0 990.5 6.305 280 6.9 44.3 10 100 1450 5.330 85.51 5.338 165.9 838.6 5.338 300 26.9 80.3 10 100 1450 4.686 75.17 4.693 145.9 737.2 4.693 320 46.9 116 10 100 1450 4.214 67.61 4.221 131.2 663.0 4.221 340 66.9 152 10 100 1450 3.849 61.75 3.855 119.8 605.6 3.855 360 86.9 188 10 100 1450 3.554 57.01 3.559 110.6 559.1 3.559 400 127 260 10 100 1450 3.100 49.73 3.105 96.50 487.7 3.105 500 227 440 10 100 1450 2.389 38.32 2.392 74.35 375.8 2.392 600 327 620 10 100 1450 1.962 31.47 1.965 61.07 308.6 1.965 Supercritical phase 200 -73.2 -100 100 1000 14500 25.50 409.0 25.53 793.6 4011 25.53 300 26.9 80.3 100 1000 14500 21.27 341.1 21.30 661.9 3346 21.30 400 127 260 100 1000 14500 17.88 286.8 17.91 556.6 2813 17.91 500 227 440 100 1000 14500 15.31 245.5 15.33 476.4 2408 15.33 600 327 620 100 1000 14500 13.36 214.3 13.38 415.8 2101 13.38

Density units conversion:

Density converter

kilogram/cubic meter [kg/m3] = gram/liter [g/l], kilogram/liter [kg/l] = gram/cubic centimeter [g/cm3]= ton(metric)/cubic meter [t/m3], once/gallon(US liquid) [oz/gal(US liq)] pound/cubic inch [lb/in3], pound/cubic foot [lb/ft3], pound/gallon(UK) [lb/gal(UK)], pound/gallon(US liquid) [lb/gal(US liq)], slug/cubic foot [sl/ft3], ton(short)/cubic yard [ton(short)/yd3], ton(long)/cubic yard [yd3]

• 1 g/cm3 = 1 kg/l = 1000 kg/m3 = 62.428 lb/ft3 = 0.03613 lb/in3 = 1.9403 sl/ft3 = 10.0224 lb/gal(UK) = 8.3454 lb/gal(US liq) = 0.5780 oz/in= 0.7525 ton(long)/yr3
• 1 g/l = 1 kg/m3 = 0.001 kg/l = 0.000001 kg/cm3 = 0.001 g/cm3 = 0.99885 oz/ft3  = 0.0005780 oz/in3 = 0.16036 oz/gal(UK) = 0.1335 oz/gal(US liq) = 0.06243 lb/ft3 = 3.6127x10-5 lb/in3 = 1.6856 lb/yd3 = 0.010022 lb/gal(UK) = 0.0083454 lb/gal(US liq) = 0.0007525 ton(long)/yd= 0.0008428 ton(short)/yd3
• 1 kg/l = 1 g/cm3 = 1000 kg/m3 = 62.428 lb/ft3 = 0.03613 lb/in3 = 1.9403 sl/ft3 = 8.3454 lb/gal(US liq) = 0.5780 oz/in= 0.7525 ton(long)/yr3
• 1 kg/m3 = 1 g/l = 0.001 kg/l = 0.000001 kg/cm3 = 0.001 g/cm3 = 0.99885 oz/ft3  = 0.0005780 oz/in3 = 0.16036 oz/gal(UK) = 0.1335 oz/gal(US liq) = 0.06243 lb/ft3 = 3.6127x10-5 lb/in3 = 1.6856 lb/yd3 = 0.010022 lb/gal(UK) = 0.008345 lb/gal(US liq) = 0.0007525 ton(long)/yd = 0.0008428 ton(short)/yd
• 1 lb/ft3 = 27 lb/yd3 = 0.009259 oz/in= 0.0005787 lb/in= 16.01845 kg/m3 = 0.01602 g/cm3  = 0.1605 lb/gal(UK) = 0.1349 lb/gal(US liq) = 2.5687 oz/gal(UK) = 2.1389 oz/gal(US liq) = 0.01205 ton(long)/yd3 = 0.0135 ton(short)/yd3
• 1 lb/gal(UK) = 0.8327 lb/gal(US liq) = 16 oz/gal(UK) = 13.323 oz/gal(US liq) = 168.179 lb/yd3 = 6.2288 lb/ft3 = 0.003605 lb/in3 = 0.05767 oz/in = 99.7764 kg/m3 = 0.09977 g/cm3  = 0.07508 ton(long)/yd3 = 0.08409 ton(short)/yd3
• 1 lb/gal(US liq) = 1.2009 lb/gal(UK) = 19.215 oz/gal(UK) = 16 oz/gal(US liq) = 201.97 lb/yd3 = 7.4805 lb/ft3 = 0.004329 lb/in3 = 0.06926 oz/in = 119.826 kg/m3 = 0.1198 g/cm3  = 0.09017 ton(long)/yd3 = 0.1010 ton(short)/yd3
• 1 lb/in3 = 1728 lb/ft3 = 46656 lb/yd3 = 16 oz/in= 27680 kg/m3 = 27.680 g/cm3  = 277.419 lb/gal(UK) = 231 lb/gal(US liq) =4438.7 oz/gal(UK) = 3696 oz/gal(US liq) = 20.8286 ton(long)/yd3 = 23.3280 ton(short)/yd3
• 1 oz/gal(UK) =  0.8327 oz/gal(US liq) = 6.2360 kg/m3 = 6.2288 oz/ft3 = 0.3893 lb/ft3 = 10.5112 lb/yd3
• 1 oz/gal(US liq) = 1.2009 oz/gal(UK) = 7.4892 kg/m3 = 7.4805 oz/ft3 = 0.4675 lb/ft3 = 12.6234 lb/yd3
• 1 sl/ft3 = 515.3788 kg/m3 = 514.7848 oz/ft3 = 0.2979 oz/in3 = 32.1741 lb/ft3 = 82.645 oz/gal(UK) = 68.817 oz/gal(US liq)
• 1 ton(long)/yd3 = 1.12 ton(short)/yd3 = 1328.94 kg/m3 = 0.7682 oz/in3 = 82.963 lb/ft3 = 2240 lb/yd3 = 2.5786 sl/ft3 = 13.319 lb/gal(UK) = 11.0905 lb/gal(US liq)
• 1 ton(short)/yd3 = 0.8929 ton(long)/yd3 = 1186.55 kg/m3 = 0.6859 oz/in3 = 74.074 lb/ft3 = 2000 lb/yd3 = 2.3023 sl/ft3 = 11.8921 lb/gal(UK) = 9.9023 lb/gal(US liq)

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• The Engineering ToolBox (2018). Methane - Density and Specific Weight vs. Temperature and Pressure. [online] Available at: https://www.engineeringtoolbox.com/methane-density-specific-weight-temperature-pressure-d_2020.html [Accessed Day Month Year].

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9.27.11