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# Methane - Thermal Conductivity vs. Temperature and Pressure

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

Thermal conductivity is a material property that describes ability to conduct heat. Thermal conductivity can be defined as

"the quantity of heat transmitted through a unit thickness of a material - in a direction normal to a surface of unit area - due to a unit temperature gradient under steady state conditions".

Thermal conductivity most common units are W/(m K) in the SI system and Btu/(h ft °F) in the Imperial system.

Tabulated values and thermal conductivity units conversion are given below the figures.

### Online Methane Thermal Conductivity Calculator

The calculator below can be used to estimate the thermal conductivity of gaseous methane at given temperatures and 1 bara.
The output conductivity is given as mW/(m K), Btu(IT)/(h ft °F), (Btu(IT) in)/(h ft2 °F) and kcal(IT)/(h m K).

Temperature

Choose the actual unit of temperature: °C  °F  °R

See also other properties of Methane at varying temperature and pressure: Density and specific weight, Dynamic and kinematic viscosity,and
as well as thermal conductivity o

Thermal conductivity of methane at given temperatures and pressures:

For full table with Thermal Conductivity - rotate the screen!

 State Temperature Pressure Thermal conductivity [K] [°C] [°F] [MPa] [bara] [psia] [mW/m K] [kcal(IT)/(h m K)] [Btu(IT)/(h ft °F)] [Btu(IT) in/(h ft2 °F)] Liquid 100 -173 -280 0.1 1 14.5 199.7 0.1717 0.1154 1.385 111.5 -161.6 -259.0 0.1 1 14.5 184.1 0.1583 0.1064 1.276 Gas 111.5 -161.6 -259.0 0.1 1 14.5 11.43 0.009828 0.006604 0.07925 140 -133 -208 0.1 1 14.5 14.65 0.01260 0.008465 0.1016 180 -93.2 -136 0.1 1 14.5 19.32 0.01661 0.01116 0.1340 200 -73.2 -99.7 0.1 1 14.5 21.94 0.01887 0.01268 0.1521 220 -53.2 -63.7 0.1 1 14.5 23.99 0.02063 0.01386 0.1663 240 -33.2 -27.7 0.1 1 14.5 26.39 0.02269 0.01525 0.1830 260 -13.2 8.3 0.1 1 14.5 28.88 0.02483 0.01669 0.2002 280 6.9 44.3 0.1 1 14.5 31.47 0.02706 0.01818 0.2182 300 26.9 80.3 0.1 1 14.5 34.19 0.02940 0.01975 0.2371 320 46.9 116 0.1 1 14.5 37.04 0.03185 0.02140 0.2568 340 66.9 152 0.1 1 14.5 40.03 0.03442 0.02313 0.2775 360 86.9 188 0.1 1 14.5 43.15 0.03710 0.02493 0.2992 400 127 260 0.1 1 14.5 49.80 0.04282 0.02877 0.3453 500 227 440 0.1 1 14.5 68.34 0.05876 0.03949 0.4738 600 327 620 0.1 1 14.5 88.80 0.07635 0.05131 0.6157 700 427 800 0.1 1 14.5 110.4 0.0949 0.06379 0.7655 800 527 980 0.1 1 14.5 132.5 0.1139 0.07656 0.9187 900 627 1160 0.1 1 14.5 154.7 0.1330 0.08938 1.073 1000 727 1340 0.1 1 14.5 176.7 0.1519 0.10210 1.225 Liquid 100 -173 -280 1 10 145 200.6 0.1725 0.1159 1.391 149.1 -124.0 -191.2 1 10 145 130.7 0.1123 0.07549 0.9059 Gas 149.1 -124.0 -191.2 1 10 145 18.17 0.01562 0.01050 0.1260 160 -113 -172 1 10 145 18.79 0.01616 0.01086 0.1303 180 -93.2 -136 1 10 145 20.65 0.01776 0.01193 0.1432 200 -73.2 -99.7 1 10 145 22.74 0.01955 0.01314 0.1577 220 -53.2 -63.7 1 10 145 24.90 0.02141 0.01439 0.1726 240 -33.2 -27.7 1 10 145 27.19 0.02338 0.01571 0.1885 260 -13.2 8.3 1 10 145 29.60 0.02545 0.01710 0.2052 280 6.9 44.3 1 10 145 32.12 0.02762 0.01856 0.2227 300 26.9 80.3 1 10 145 34.79 0.02991 0.02010 0.2412 320 46.9 116 1 10 145 37.59 0.03232 0.02172 0.2606 340 66.9 152 1 10 145 40.54 0.03486 0.02342 0.2811 360 86.9 188 1 10 145 43.64 0.03752 0.02521 0.3026 400 127 260 1 10 145 50.23 0.04319 0.02902 0.3483 500 227 440 1 10 145 68.68 0.05905 0.03968 0.4762 600 327 620 1 10 145 89.08 0.07660 0.05147 0.6176 Liquid 100 -173 -280 5 50 725 204.5 0.1758 0.1181 1.418 Supercriticalphase 200 -73.2 -99.7 5 50 725 40.61 0.03492 0.02347 0.2816 300 26.9 80.3 5 50 725 38.48 0.03309 0.02223 0.2668 400 127 260 5 50 725 52.69 0.04531 0.03045 0.3653 500 227 440 5 50 725 70.51 0.06063 0.04074 0.4889 600 327 620 5 50 725 90.50 0.07781 0.05229 0.6275 Liquid 100 -173 -280 10 100 1450 209.1 0.1798 0.1208 1.450 Supercriticalphase 200 -73.2 -100 10 100 1450 84.23 0.07243 0.04867 0.5840 240 -33.2 -27.7 10 100 1450 49.74 0.04277 0.02874 0.3449 260 -13.2 8.3 10 100 1450 44.85 0.03856 0.02591 0.3110 280 6.9 44.3 10 100 1450 43.81 0.03767 0.02531 0.3038 300 26.9 80.3 10 100 1450 44.37 0.03815 0.02564 0.3076 320 46.9 116 10 100 1450 45.79 0.03937 0.02646 0.3175 340 66.9 152 10 100 1450 47.75 0.04106 0.02759 0.3311 360 86.9 188 10 100 1450 50.09 0.04307 0.02894 0.3473 400 127 260 10 100 1450 55.61 0.04782 0.03213 0.3856 500 227 440 10 100 1450 72.78 0.06258 0.04205 0.5046 Supercriticalphase 200 -73.2 -100 100 1000 14500 188.1 0.1617 0.1087 1.304 300 26.9 80.3 100 1000 14500 137.7 0.1184 0.07955 0.9546 400 127 260 100 1000 14500 120.4 0.1035 0.06955 0.8347 500 227 440 100 1000 14500 120.9 0.1039 0.06984 0.8381 600 327 620 100 1000 14500 130.4 0.1121 0.07532 0.9039

Thermal conductivity units conversion:

Thermal conductivity unit converter

british thermal unit(international)/(foot hour degree fahrenheit) [Btu(IT)/(ft h°F], british thermal unit(international)/(inch hour degree fahrenheit) [Btu(IT)/(in h°F], british thermal unit(international)*inch/(square foot*hour*degree fahrenheit) [(Btu(IT) in)/(ft² h°F)], kilocalorie/(meter hour degree celcius) [kcal/(m h°C)], joule/(centimeter second degree kelvin) [J/(cm s K)], watt/(meter degree kelvin) [W/(m°C)],

• 1 Btu(IT)/(ft h°F) = 1/12 Btu(IT)/(in h°F) = 0.08333 Btu(IT)/(in h°F) = 12 Btu(IT)in/(ft2 h°F) = 1.488 kcal/(m h°C) = 0.01731 J/(cm s K) = 1.731 W/(m K)
• 1 Btu(IT)/(in h°F) = 12 Btu(IT)/(ft h°F) = 144 Btu(IT)in/(ft2 h°F) = 17.858 kcal/(m h°C) = 0.20769 J/(cm s K)= 20.769 W/(m K)
• 1 (Btu(IT) in)/(ft² h°F) = 0.08333 Btu(IT)/(ft h°F) = 0.00694 Btu(IT)/(in h°F) = 0.12401 kcal/(m h°C) = 0.001442 J/(cm s K) = 0.1442 W/(m K)
• 1 J/(cm s K) = 100 W/(m K) = 57.789 Btu(IT)/(ft h°F) = 4.8149 Btu(IT)/(in h°F) = 693.35 (Btu(IT) in)/(ft² h°F) = 85.984 kcal/(m h°C)
• 1 kcal/(m h°C) = 0.6720 Btu(IT)/(ft h°F) = 0.05600 Btu(IT)/(in h°F) = 8.0636 (Btu(IT) in)/(ft2 h°F) = 0.01163 J/(cm s K) = 1.163 W/(m K)
• 1 W/(m K) = 0.01 J/(cm s K) = 0.5779 Btu(IT)/(ft h°F) = 0.04815 Btu(IT)/(in h°F) = 6.9335 (Btu(IT) in)/(ft² h°F) = 0.85984 kcal/(m h°C)

## Related Topics

• Fluid Mechanics - The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.
• Material Properties - Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.
• Thermodynamics - Work, heat and energy systems.

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