Convert BTU to kcal
Enter the number of btu that you want to convert to kilocalories.
How to Convert BTU to Kilocalories
The british thermal unit and kilocalorie are both units of energy. 1 kilocalorie equals 3.9656668314 btu. This means to convert btu to kilocalories, you divide by 3.9656668314.
Formula
Step-by-Step Example
Convert 5 BTU to kilocalories:
We need to convert btu to kilocalories
Since 1 kcal = 3.9656668314 BTU, divide by 3.9656668314
5 ÷ 3.9656668314 = 1.2608220036
5 BTU = 1.2608220036 kcal
British Thermal Unit to Kilocalorie Conversion Table
Quick reference table for common british thermal unit to kilocalorie conversions. Click any value for detailed calculation.
| BTU (BTU) | Kilocalories (kcal) |
|---|---|
| 1 BTU | 0.2521644007 kcal |
| 2 BTU | 0.5043288014 kcal |
| 5 BTU | 1.2608220036 kcal |
| 10 BTU | 2.5216440072 kcal |
| 15 BTU | 3.7824660108 kcal |
| 20 BTU | 5.0432880144 kcal |
| 25 BTU | 6.304110018 kcal |
| 50 BTU | 12.608220036 kcal |
| 100 BTU | 25.216440072 kcal |
About These Units
British Thermal Unit (BTU)
A British Thermal Unit (BTU) is the energy needed to raise 1 pound of water by 1°F, equal to approximately 1,055 joules. BTUs measure heating/cooling capacity (AC units: 5,000-25,000 BTU), fuel energy content, and HVAC systems. One BTU equals 252 calories.
Kilocalorie (kcal)
A kilocalorie (kcal), often written as "Calorie" (capital C) on food labels, equals 1,000 small calories or 4,184 joules. Kilocalories measure food energy. Average adult needs 2,000-2,500 kcal daily. Walking one mile burns about 80-100 kcal.
Frequently Asked Questions
How do I convert btu to kilocalories?
To convert btu to kilocalories, divide the value by 3.9656668314. For example, 10 BTU = 2.5216440072 kcal.
How many kilocalories are in 1 british thermal unit?
1 british thermal unit equals 0.2521644007 kilocalories.
What is the formula for btu to kilocalories?
The formula is: kcal = BTU ÷ 3.9656668314.