Convert kilocalorie (kcal) to BTU (BTU).
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BTU to Kilocalorie Converter (BTU to kcal)
Convert BTU (BTU) to kilocalorie (kcal).Unit Converter · Energy
Quick answer
1 BTU is approximately equal to 0.2521644 kilocalories (kcal). 1 kilocalorie (kcal) is approximately equal to 3.965667 BTUs (BTU).
To convert BTU to kcal, multiply the value in BTUs by 0.2521644007. For example, 10 BTU = 2.52164401 kcal, and 100 BTU = 25.21644007 kcal.
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Quick reference — BTU to kilocalorie
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How to convert BTUs to kilocalories
How many kilocalories are in a BTU? 1 BTU is about 0.2521644 kilocalories. This free BTU to kcal converter and BTU to kilocalorie calculator gives the answer instantly for any value.
To convert BTU (BTU) to kilocalorie (kcal), multiply the value in BTUs by 0.2521644007.
kcal = BTU × 0.2521644007
- 1
Take the value in BTUs
For example, 25 BTU.
- 2
Multiply by 0.2521644007
25 × 0.2521644007.
- 3
Read the answer in kilocalories
25 BTU = 6.30411002 kcal.
BTU to Kilocalorie conversion table
Common values from 1 to 1,000 BTUs converted to kilocalories.
| BTU (BTU) | Kilocalorie (kcal) |
|---|---|
| 1 BTU | 0.2521644 kcal |
| 2 BTU | 0.5043288 kcal |
| 3 BTU | 0.7564932 kcal |
| 4 BTU | 1.0086576 kcal |
| 5 BTU | 1.260822 kcal |
| 6 BTU | 1.5129864 kcal |
| 7 BTU | 1.76515081 kcal |
| 8 BTU | 2.01731521 kcal |
| 9 BTU | 2.26947961 kcal |
| 10 BTU | 2.52164401 kcal |
| 15 BTU | 3.78246601 kcal |
| 20 BTU | 5.04328801 kcal |
| 25 BTU | 6.30411002 kcal |
| BTU (BTU) | Kilocalorie (kcal) |
|---|---|
| 30 BTU | 7.56493202 kcal |
| 40 BTU | 10.08657603 kcal |
| 50 BTU | 12.60822004 kcal |
| 60 BTU | 15.12986404 kcal |
| 70 BTU | 17.65150805 kcal |
| 75 BTU | 18.91233005 kcal |
| 80 BTU | 20.17315206 kcal |
| 90 BTU | 22.69479607 kcal |
| 100 BTU | 25.21644007 kcal |
| 250 BTU | 63.04110018 kcal |
| 500 BTU | 126.08220036 kcal |
| 1,000 BTU | 252.16440072 kcal |
About BTUs and kilocalories
BTU (BTU)
A British thermal unit (BTU) is about 1,055 joules. It is used to rate air conditioners and heaters.
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 to kcal: common questions
- How many kilocalories are in 1 BTU?
- 1 BTU is approximately equal to 0.2521644 kilocalories (kcal). In short: 1 BTU ≈ 0.2521644 kcal.
- How do I convert BTUs to kilocalories?
- To convert BTU to kcal, multiply the value in BTUs by 0.2521644007. For example, 5 BTU = 1.260822 kcal.
- How do I convert kilocalories to BTUs?
- Use the Kilocalorie to Btu converter, which applies the exact reverse factor.
- What is 10 BTU in kcal, and what is 100 BTU?
- 10 BTU = 2.52164401 kcal, and 100 BTU = 25.21644007 kcal. The table above lists more values from 1 to 1,000.
- Is this BTU to kcal 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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