Convert BTU (BTU) to kilocalorie (kcal).
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Kilocalorie to BTU Converter (kcal to BTU)
Convert kilocalorie (kcal) to BTU (BTU).Unit Converter · Energy
Quick answer
1 kilocalorie (kcal) is approximately equal to 3.965667 BTUs (BTU). 1 BTU is approximately equal to 0.2521644 kilocalories (kcal).
To convert kcal to BTU, multiply the value in kilocalories by 3.9656668314. For example, 10 kcal = 39.65666831 BTU, and 100 kcal = 396.56668314 BTU.
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Quick reference — kilocalorie to BTU
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How to convert kilocalories to BTUs
How many BTUs are in a kilocalorie? 1 kilocalorie is about 3.965667 BTUs. This free kcal to BTU converter and kilocalorie to BTU calculator gives the answer instantly for any value.
To convert kilocalorie (kcal) to BTU (BTU), multiply the value in kilocalories by 3.9656668314.
BTU = kcal × 3.9656668314
- 1
Take the value in kilocalories
For example, 25 kcal.
- 2
Multiply by 3.9656668314
25 × 3.9656668314.
- 3
Read the answer in BTUs
25 kcal = 99.14167078 BTU.
Kilocalorie to BTU conversion table
Common values from 1 to 1,000 kilocalories converted to BTUs.
| Kilocalorie (kcal) | BTU (BTU) |
|---|---|
| 1 kcal | 3.96566683 BTU |
| 2 kcal | 7.93133366 BTU |
| 3 kcal | 11.89700049 BTU |
| 4 kcal | 15.86266733 BTU |
| 5 kcal | 19.82833416 BTU |
| 6 kcal | 23.79400099 BTU |
| 7 kcal | 27.75966782 BTU |
| 8 kcal | 31.72533465 BTU |
| 9 kcal | 35.69100148 BTU |
| 10 kcal | 39.65666831 BTU |
| 15 kcal | 59.48500247 BTU |
| 20 kcal | 79.31333663 BTU |
| 25 kcal | 99.14167078 BTU |
| Kilocalorie (kcal) | BTU (BTU) |
|---|---|
| 30 kcal | 118.97000494 BTU |
| 40 kcal | 158.62667326 BTU |
| 50 kcal | 198.28334157 BTU |
| 60 kcal | 237.94000988 BTU |
| 70 kcal | 277.5966782 BTU |
| 75 kcal | 297.42501235 BTU |
| 80 kcal | 317.25334651 BTU |
| 90 kcal | 356.91001483 BTU |
| 100 kcal | 396.56668314 BTU |
| 250 kcal | 991.41670785 BTU |
| 500 kcal | 1,982.8334157 BTU |
| 1,000 kcal | 3,965.66683139 BTU |
About kilocalories and BTUs
Kilocalorie (kcal)
A kilocalorie (kcal) is 1,000 calories, or 4,184 joules. It is the "Calorie" used on food labels and in diet and fitness tracking.
BTU (BTU)
A British thermal unit (BTU) is about 1,055 joules. It is used to rate air conditioners and heaters.
kcal to BTU: common questions
- How many BTUs are in 1 kilocalorie?
- 1 kilocalorie (kcal) is approximately equal to 3.965667 BTUs (BTU). In short: 1 kcal ≈ 3.965667 BTU.
- How do I convert kilocalories to BTUs?
- To convert kcal to BTU, multiply the value in kilocalories by 3.9656668314. For example, 5 kcal = 19.82833416 BTU.
- How do I convert BTUs to kilocalories?
- To convert BTU to kcal, divide the value in BTUs by 3.9656668314. Or open the Btu to Kilocalorie converter, which does it for you.
- What is 10 kcal in BTU, and what is 100 kcal?
- 10 kcal = 39.65666831 BTU, and 100 kcal = 396.56668314 BTU. The table above lists more values from 1 to 1,000.
- Is this kcal to BTU converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
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