Convert Btu (th) to calorie (IT)
Please provide values below to convert Btu (th) [Btu (th)] to calorie (IT) [cal (IT)], or Convert calorie (IT) to Btu (th).
How to Convert Btu (Th) to Calorie (It)
1 Btu (th) = 251.827233209133 cal (IT)
Example: convert 15 Btu (th) to cal (IT):
15 Btu (th) = 15 × 251.827233209133 cal (IT) = 3777.408498137 cal (IT)
Btu (Th) to Calorie (It) Conversion Table
| Btu (th) | calorie (IT) |
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Btu (Th)
The Btu (th), or British thermal unit (th), is a unit of energy used primarily in the United States to measure heat content, equivalent to the amount of heat needed to raise the temperature of one pound of water by one degree Fahrenheit.
History/Origin
The Btu (th) originated from the British thermal unit, a traditional unit of heat in the British Imperial system, and has been used historically in heating, cooling, and energy industries to quantify energy content and heat transfer.
Current Use
Today, the Btu (th) is mainly used in the energy sector, particularly in heating and cooling systems, natural gas billing, and energy content measurement, especially within the United States.
Calorie (It)
The calorie (cal) is a unit of energy traditionally used to quantify the amount of heat required to raise the temperature of one gram of water by one degree Celsius at standard atmospheric pressure.
History/Origin
The calorie was originally defined in the 19th century as a unit of heat energy in thermodynamics. It has historically been used in nutrition and physics, but has largely been replaced by the joule in scientific contexts. The 'small calorie' (cal) is distinct from the 'large calorie' (kcal), which is commonly used in food energy labeling.
Current Use
Today, the calorie is primarily used in nutrition to measure the energy content of foods and beverages, although the SI unit of energy, the joule, is increasingly preferred in scientific and technical fields.