Btu to Kilocalories
1 btu = 0.252165 kilocalories (kcal)
Convert btu to kilocalories instantly. 1 btu = 0.252165 kilocalories. Free, accurate, with conversion table and formula.
BTU (BTU)
Kilocalorie (kcal)
| Unit | 1 BTU equals |
|---|---|
| Joule (J) | 1,055.06 |
| Kilojoule (kJ) | 1.05506 |
| Calorie (cal) | 252.165 |
| Kilocalorie (kcal) | 0.252165 |
| Watt Hour (Wh) | 0.293072 |
| Kilowatt Hour (kWh) | 0.000293072 |
| BTU (BTU) | 1 |
| Electron Volt (eV) | 6.58517e+21 |
| Foot-Pound (ft·lb) | 778.171 |
How to convert btu to kilocalories
- 1Take your value in btu (BTU).
- 2Multiply by 0.252165.
- 3The result is your value in kilocalories (kcal).
Btu to Kilocalories conversion table
| Btu (BTU) | Kilocalories (kcal) |
|---|---|
| 1 | 0.252165 |
| 2 | 0.504331 |
| 5 | 1.26083 |
| 10 | 2.52165 |
| 25 | 6.30413 |
| 50 | 12.6083 |
| 100 | 25.2165 |
| 250 | 63.0413 |
| 500 | 126.083 |
| 1,000 | 252.165 |
Frequently asked
How many kilocalories are in a btu?
1 btu equals 0.252165 kilocalories (kcal).
How do I convert btu to kilocalories?
Multiply the number of btu by 0.252165 to get kilocalories.
What is 10 btu in kilocalories?
10 BTU equals 2.522 kcal.
What is 100 btu in kilocalories?
100 BTU equals 25.22 kcal.
How do I convert kilocalories back to btu?
Multiply kilocalories by 3.96565 (the reciprocal) or use the swap button above.
Where you'll actually use this
Energy converters bridge joules, calories, kilowatt-hours, BTUs, and electron-volts — the same physical quantity expressed for science, nutrition, electricity, or HVAC.
- Electricity bills
Usage is billed in kWh. Convert to joules for physics, or to BTU for HVAC comparisons.
- Nutrition
Food 'calories' are actually kilocalories (kcal). 1 kcal = 4,184 J. EU labels list both kcal and kJ.
- HVAC & cooling
Air conditioner output is quoted in BTU/h in the US, watts elsewhere.
Common mistakes to avoid
- Calories vs kilocalories
When a food label says '250 calories' it really means 250 kcal = 250,000 small calories.
- kW vs kWh
kW is power (rate); kWh is energy (total). A 1 kW heater running for 2 hours uses 2 kWh.
Did you know?
A typical modern fridge uses about 1 kWh per 24 hours — roughly $0.10–$0.30 depending on local rates.
Related conversions
What people do next
Curated handoffs from this tool — picked, not guessed.
Your next conversion is one tap away.
Trending tools, your recent picks, and smart suggestions — curated, not cluttered.