| Did you mean to convert | calorie [15 °C] calorie [I.T.] calorie [nutritional] calorie [thermochemical] |
to | British thermal unit |
How many calorie in 1 British thermal unit? The answer is 252.05597496297. We assume you are converting between calorie [15 °C] and British thermal unit. You can view more details on each measurement unit: calorie or British thermal unit The SI derived unit for energy is the joule. 1 joule is equal to 0.23890295761862 calorie, or 0.00094781707774915 British thermal unit. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between calories and Btus. Type in your own numbers in the form to convert the units!
1 calorie to British thermal unit = 0.00397 British thermal unit
10 calorie to British thermal unit = 0.03967 British thermal unit
50 calorie to British thermal unit = 0.19837 British thermal unit
100 calorie to British thermal unit = 0.39674 British thermal unit
200 calorie to British thermal unit = 0.79347 British thermal unit
500 calorie to British thermal unit = 1.98369 British thermal unit
1000 calorie to British thermal unit = 3.96737 British thermal unit
You can do the reverse unit conversion from British thermal unit to calorie, or enter any two units below:
15 °C calorie: the amount of energy required to warm 1 g of air-free water from 14.5 °C to 15.5 °C at a constant pressure of 101.325 kPa (1 atm). Experimental values of this calorie ranged from 4.1852 J to 4.1858 J. The CIPM in 1950 published a mean experimental value of 4.1855 J, noting an uncertainty of 0.0005 J.
The British thermal unit (BTU or Btu) is a non-metric unit of energy, used in the United States and, to a lesser extent, the UK (where it isgenerally only used for heating systems). The SI unit is the joule (J), which is used by most other countries.
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