Quick answer: 1 BTU in Kilocalorie (kcal)
1 BTU equals 0.252164 kcal. To convert BTU to Kilocalorie (kcal), multiply by 0.252164 using the free calculator above — no signup needed.
Energy & Work units
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About Energy & Work Converter
The Energy & Work Converter converts between 7 different units, including Joule, Kilojoule, Calorie, Kilocalorie (kcal), Watt-hour (Wh). The base unit is the Joule, and every other unit on this page is defined as an exact multiple of it. Type any value into the calculator above to convert instantly — free, unlimited, no signup and nothing to install.
Common equivalents: 1 Joule = 0.001 Kilojoule, 0.239006 Calorie, 0.000239006 Kilocalorie (kcal).
Scale of this category: the smallest unit is the Joule (J) and the largest is the Kilowatt-hour (kWh) (kWh).
Last updated: 2026-09-15
Energy & Work conversion factors
| Unit | Symbol | Value in Joule |
|---|---|---|
| Joule | J | 1 J = 1 J |
| Kilojoule | kJ | 1 kJ = 1000 J |
| Calorie | cal | 1 cal = 4.184 J |
| Kilocalorie (kcal) | kcal | 1 kcal = 4184 J |
| Watt-hour (Wh) | Wh | 1 Wh = 3600 J |
| Kilowatt-hour (kWh) | kWh | 1 kWh = 3600000 J |
| BTU | BTU | 1 BTU = 1055.06 J |
Worked Examples
See exactly how the conversion works with real numbers, step by step.
How much is 1 BTU in Kilocalorie (kcal)?
- Multiply 1 by the conversion factor 0.252164
- 1 BTU = 0.252164 Kilocalorie (kcal)
How much is 10 BTU in Kilocalorie (kcal)?
- Multiply 10 by the conversion factor 0.252164
- 10 BTU = 2.521644 Kilocalorie (kcal)
How much is 100 BTU in Kilocalorie (kcal)?
- Multiply 100 by the conversion factor 0.252164
- 100 BTU = 25.21644 Kilocalorie (kcal)
Quick Conversion Reference Table
| BTU (BTU) | Kilocalorie (kcal) (kcal) |
|---|---|
| 1 BTU (BTU) | 0.252164 kcal (Kilocalorie (kcal)) |
| 2 BTU (BTU) | 0.504329 kcal (Kilocalorie (kcal)) |
| 5 BTU (BTU) | 1.260822 kcal (Kilocalorie (kcal)) |
| 10 BTU (BTU) | 2.521644 kcal (Kilocalorie (kcal)) |
| 20 BTU (BTU) | 5.043288 kcal (Kilocalorie (kcal)) |
| 50 BTU (BTU) | 12.60822 kcal (Kilocalorie (kcal)) |
| 100 BTU (BTU) | 25.21644 kcal (Kilocalorie (kcal)) |
| 500 BTU (BTU) | 126.0822 kcal (Kilocalorie (kcal)) |
| 1000 BTU (BTU) | 252.164401 kcal (Kilocalorie (kcal)) |
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FAQ
How much is 1 BTU in Kilocalorie (kcal)?
1 BTU = 0.252164 Kilocalorie (kcal).
How do I convert BTU to Kilocalorie (kcal)?
Enter your value in BTU into the converter above and the result in Kilocalorie (kcal) appears instantly. 1 BTU equals 0.252164 kcal — just multiply your value by 0.252164.
What is the formula for BTU to Kilocalorie (kcal)?
The formula is: value in Kilocalorie (kcal) = value in BTU × 0.252164. For example, 10 BTU × 0.252164 = 2.521644 kcal.
Is this BTU to Kilocalorie (kcal) converter free and accurate?
Yes. This BTU to Kilocalorie (kcal) converter is 100% free, uses the exact international conversion factor (0.252164), and works on any device with no signup.
How do I convert Kilocalorie (kcal) back to BTU?
To convert back, divide by 0.252164 (or multiply by 3.965667). You can also use our dedicated How Many BTU in 1 Kilocalorie (kcal)? page for instant results.
Do I need to download an app or sign up?
No. The converter runs entirely in your browser — nothing to install, no account, no fees. It even keeps working offline once the page has loaded.
Which Energy & Work units are supported?
This converter supports 7 units: Joule, Kilojoule, Calorie, Kilocalorie (kcal), Watt-hour (Wh), Kilowatt-hour (kWh), BTU.