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Engineering ToolBox > Thermal Conductance Conversion Factors
Thermal conductivity - k - indicates a materials ability to conduct heat.
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| Convert from | Convert to | |||||||||
| Btu ft / (h ft2 oF) | Btu in / (h ft2 oF) | Btu in / sec ft2 oF) | Cal / (cm s oC) | Kcal / (cm s oC) | Kcal / (m h oC) | Erg / (cm s oC) | Joules / (m h oC) | Watt / (ft oC) | Watt / (m oK) | |
| Btu ft / (h ft2 oF) | 1 | 12 | 0.0033 | 0.0041 | 4.134 10-6 | 1.49 | 173076 | 6230 | 0.527 | 1.73 |
| Btu in / (h ft2 oF) | 0.0833 | 1 | 0.000278 | 0.00035 | 3.45 10-7 | 0.124 | 14423 | 519 | 0.044 | 0.14 |
| Btu in / (sec ft2 oF) | 300 | 3600 | 1 | 1.24 | 0.0012 | 446.5 | 5.19 107 | 1.87 106 | 158.2 | 519 |
| Cal / (cm s oC) | 241.9 | 2903 | 0.806 | 1 | 0.001 | 360 | 4.19 107 | 1.51 106 | 127.6 | 418 |
| Kcal / (cm s oC) | 2.42 105 | 2.9 106 | 806.3 | 1000 | 1 | 360000 | 4.19 1010 | 1.51 109 | 1.276 105 | 4.18 105 |
| Kcal / (m h oC) | 0.672 | 8.06 | 0.0022 | 0.00278 | 2.778 10-6 | 1 | 116300 | 4187 | 0.354 | 1.16 |
| Erg / (cm s oC) | 5.78 106 | 6.93 10-5 | 1.92 10-8 | 2.39 10-8 | 2.389 10-11 | 8.6 10-6 | 1 | 0.036 | 3.05 10-6 | 1 10-5 |
| Joules / (m h oC) | 1.61 10-4 | 0.00193 | 5.35 10-7 | 6.64 10-7 | 6.635 10-10 | 0.00024 | 27.78 | 1 | 8.47 10-5 | 2.78 10-4 |
| Watt / (ft oC) | 1.89 | 22.8 | 0.0078 | 0.0078 | 7.84 10-6 | 2.82 | 328123 | 11811 | 1 | 3.28 |
| Watt / (m oK) | 0.58 | 6.94 | 0.0024 | 0.0024 | 2.39 10-6 | 0.86 | 1 105 | 3600 | 0.305 | 1 |