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Convert kilocalories to British thermal units

Convert kilocalories (kcal) to British thermal units (BTU). 1 kcal = 3.96567 BTU, and 1 BTU = 0.252164 kcal.

100 kcal = 396.567 BTU

KCAL to BTU formula

BTU = kcal × 3.965666831

Multiply the number of kilocalories by 3.965666831.

Example: To convert 100 kcal to British thermal units: 100 × 3.965666831 = 396.567 BTU.

Quick answers

What is 100 kcal in British thermal units?
100 kcal = 396.567 BTU
What is 500 kcal in British thermal units?
500 kcal = 1,982.83 BTU
What is 2,000 kcal in British thermal units?
2,000 kcal = 7,931.33 BTU

KCAL to BTU conversion table

BTU to KCAL table
kilocalories (kcal)British thermal units (BTU)
1 kcal3.96567 BTU
50 kcal198.283 BTU
100 kcal396.567 BTU
150 kcal594.85 BTU
200 kcal793.133 BTU
250 kcal991.417 BTU
300 kcal1,189.7 BTU
500 kcal1,982.83 BTU
1,000 kcal3,965.67 BTU
1,500 kcal5,948.5 BTU
1,800 kcal7,138.2 BTU
2,000 kcal7,931.33 BTU
2,500 kcal9,914.17 BTU
3,000 kcal11,897 BTU

Frequently asked questions

How many British thermal units are in a kilocalorie?

There are 3.96567 British thermal units in a kilocalorie (1 kcal = 3.96567 BTU).

How do I convert kilocalories to British thermal units?

Multiply the number of kilocalories by 3.965666831. To convert 100 kcal to British thermal units: 100 × 3.965666831 = 396.567 BTU.

Is the KCAL to BTU conversion exact?

Yes. Both units are defined exactly, so 1 kilocalorie is exactly 3.96566683139 British thermal units. Results on this page are rounded to six significant digits; pick more decimals in the converter if you need them.

What is 100 kcal in British thermal units?

100 kcal = 396.567 BTU.

How do I convert British thermal units back to kilocalories?

Use the reverse relationship: 1 BTU = 0.252164 kcal. The BTU to KCAL page has a converter and a full table.

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