BTU per Fahrenheit degree
Heat capacityexact by definition
The BTU per Fahrenheit degree is the customary US unit of heat capacity, equal to exactly 1899.1005347160 J/K. The factor is exact by definition, being the International Table BTU of 1055.05585262 J divided by the 5/9 kelvin Fahrenheit degree. Since water is 1 BTU/(lb·°F), a tank holding N pounds of water has a heat capacity of N BTU/°F, which is the arithmetic that makes this unit popular.
Watch out: The degree here is an interval. A 500 lb thermal mass at 500 BTU/°F stores 10 000 BTU across a 20 F° swing, regardless of what the absolute temperatures are.
| 1 | 1,899.1005 |
One btu per fahrenheit degree in every heat capacity unit
| 1,899,100 | millijoule per kelvin (mJ/K) | |
| 1,899.1 | joule per kelvin (J/K) | |
| 1,899.1 | joule per Celsius degree (J/°C) | |
| 453.896 | calorie per kelvin (cal/K) | |
| 1.8991 | kilojoule per kelvin (kJ/K) | |
| 1.8991 | kilojoule per Celsius degree (kJ/°C) | |
| 1 | BTU per Fahrenheit degree (BTU/°F)this unit | |
| 1 | BTU per Rankine degree (BTU/°R) | |
| 0.527528 | watt-hour per kelvin (W·h/K) | |
| 0.453896 | kilocalorie per kelvin (kcal/K) | |
| 0.0018991 | megajoule per kelvin (MJ/K) | |
| 0.000527528 | kilowatt-hour per kelvin (kW·h/K) |
Solvers that use heat capacity