Convert British Thermal Units to Kilocalories

Enter the energy in british thermal units below to get the value converted to kilocalories.

Results in Kilocalories:
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1 BTU = 0.252164 kcal

How to Convert British Thermal Units to Kilocalories

To convert a british thermal unit measurement to a kilocalorie measurement, multiply the energy by the conversion ratio. One british thermal unit is equal to 0.252164 kilocalories, so use this simple formula to convert:

kilocalories = british thermal units × 0.252164

The energy in kilocalories is equal to the british thermal units multiplied by 0.252164.

For example, here's how to convert 5 british thermal units to kilocalories using the formula above.
5 BTU = (5 × 0.252164) = 1.260822 kcal

British thermal units and kilocalories are both units used to measure energy. Keep reading to learn more about each unit of measure.

British Thermal Units

British thermal units are a measure of heat energy. Specifically, one british thermal unit is equal to the amount of heat energy required to increase the temperature of one pound of water one degree Fahrenheit. They are often used as a way to rate the energy heat producing appliances such furnaces, and to price heating fuels such as natural gas.

The british thermal unit is a US customary unit of energy. British thermal units can be abbreviated as BTU, for example 1 british thermal unit can be written as 1 BTU.


One kilocalorie, is equal to the heat needed to raise the temperature of one kilogram of water from 14.5 to 15.5 degrees Celsius.

Kilocalories can be abbreviated as kcal, for example 1 kilocalorie can be written as 1 kcal.

When being used to measure nutrition or metabolic processes, the large calorie is used, which is equal to one kilocalorie.

British Thermal Unit Measurements and Equivalent Kilocalorie Conversions

Common british thermal unit values converted to the equivalent kilocalorie value
British Thermal Units Kilocalories
1 BTU 0.252164 kcal
2 BTU 0.504329 kcal
3 BTU 0.756493 kcal
4 BTU 1.0087 kcal
5 BTU 1.2608 kcal
6 BTU 1.513 kcal
7 BTU 1.7652 kcal
8 BTU 2.0173 kcal
9 BTU 2.2695 kcal
10 BTU 2.5216 kcal
11 BTU 2.7738 kcal
12 BTU 3.026 kcal
13 BTU 3.2781 kcal
14 BTU 3.5303 kcal
15 BTU 3.7825 kcal
16 BTU 4.0346 kcal
17 BTU 4.2868 kcal
18 BTU 4.539 kcal
19 BTU 4.7911 kcal
20 BTU 5.0433 kcal
21 BTU 5.2955 kcal
22 BTU 5.5476 kcal
23 BTU 5.7998 kcal
24 BTU 6.0519 kcal
25 BTU 6.3041 kcal
26 BTU 6.5563 kcal
27 BTU 6.8084 kcal
28 BTU 7.0606 kcal
29 BTU 7.3128 kcal
30 BTU 7.5649 kcal
31 BTU 7.8171 kcal
32 BTU 8.0693 kcal
33 BTU 8.3214 kcal
34 BTU 8.5736 kcal
35 BTU 8.8258 kcal
36 BTU 9.0779 kcal
37 BTU 9.3301 kcal
38 BTU 9.5822 kcal
39 BTU 9.8344 kcal
40 BTU 10.09 kcal

More British Thermal Unit Energy Conversions

Convert to Joules
1 BTU is equal to 1,055.06 joules
Convert to Kilojoules
1 BTU is equal to 1.055056 kilojoules
Convert to Megajoules
1 BTU is equal to 0.001055 megajoules
Convert to Gigajoules
1 BTU is equal to 1.0551E-6 gigajoules
Convert to Calories
1 BTU is equal to 252.164401 calories
Convert to Megacalories
1 BTU is equal to 0.000252 megacalories
Watts x Time
Convert to Watt-hours
1 BTU is equal to 0.293071 watt-hours
Convert to Kilowatt-hours
1 BTU is equal to 0.000293 kilowatt-hours
Convert to Megawatt-hours
1 BTU is equal to 2.9307E-7 megawatt-hours
Convert to Watt-seconds
1 BTU is equal to 1,055.06 watt-seconds
Thermal Units
Convert to Million BTU
1 BTU is equal to 1.0E-6 million BTU
Convert to Therms
1 BTU is equal to 1.0E-5 therms
Convert to Quads
1 BTU is equal to 1.0E-15 quads
Convert to Electronvolts
1 BTU is equal to 6,585,100,000,000,000,131,072 electronvolts
Convert to Kiloelectronvolts
1 BTU is equal to 6,585,100,000,000,000,000 kiloelectronvolts
Convert to Megaelectronvolts
1 BTU is equal to 6,585,100,000,000,000 megaelectronvolts