Kilocalories to British Thermal Units Converter (kcal to BTU)

1 kcal = 3.96567 BTU

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Formula

To convert kilocalories to British thermal units, multiply the value by 3.96566683.

BTU = kcal × 3.96566683

Example calculation

Convert 5 kcal to BTU:

5 kcal × 3.96566683 = 19.8283 BTU

Conversion table

kilocalories → British thermal units
kcalBTU
13.9657
27.9313
311.8970
415.8627
519.8283
623.7940
727.7597
831.7253
935.6910
1039.6567
1559.4850
2079.3133
2599.1417
30118.9700
35138.7983
40158.6267
45178.4550
50198.2833
55218.1117
60237.9400
65257.7683
70277.5967
75297.4250
80317.2533
85337.0817
90356.9100
95376.7383
100396.5667
200793.1334
5001982.8334
10003965.6668
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About the units

Kilocalorie (kcal)
The "food calorie" on nutrition labels. Equal to 4,184 joules.
British Thermal Unit (BTU)
Used for heating, cooling and gas in the US. The IT BTU is about 1,055.056 joules.

Frequently asked questions

How do I convert kilocalories to British thermal units?
To convert kilocalories to British thermal units, multiply the value by 3.96566683.
How many British thermal units are in 1 kilocalorie?
1 kilocalorie equals 3.96567 BTU.
How many British thermal units are in 10 kilocalories?
10 kcal equals 39.6567 BTU.
How do I convert British thermal units back to kilocalories?
Use the reverse converter: 1 British thermal unit equals 0.252164 kcal.
Is this converter accurate?
Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

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