BTU to Calories Converter
Convert BTU to cal instantly. 1 BTU = 252.1644007 cal.
Conversion Formula
cal = BTU × 252.1644007
Example
25 BTU × 252.1644007 = 6,304.110018 cal
Convert the other way: Calories to BTU →
BTU to Calories Conversion Table
| BTU (BTU) | Calories (cal) |
|---|---|
| 0.1 | 25.21644007 |
| 0.5 | 126.0822004 |
| 1 | 252.1644007 |
| 2 | 504.3288014 |
| 5 | 1,260.822004 |
| 10 | 2,521.644007 |
| 20 | 5,043.288014 |
| 25 | 6,304.110018 |
| 50 | 12,608.22004 |
| 100 | 25,216.44007 |
| 500 | 126,082.2004 |
| 1,000 | 252,164.4007 |
About These Units
- BTU (BTU)
- The British thermal unit, about 1,055.06 J, roughly the heat that raises one pound of water by 1 °F. It is used in the United States for furnace, air conditioner, and natural gas energy figures.
- Calories (cal)
- The thermochemical calorie, exactly 4.184 J, roughly the energy that warms 1 g of water by 1 °C. Chemistry texts use this small calorie, which is one thousandth of the food Calorie on labels.
Frequently Asked Questions
How many cal are in 1 BTU?
1 BTU equals 252.1644007 cal.
How do I convert BTU to Calories?
Multiply your BTU value by 252.1644007. For example, 25 BTU × 252.1644007 = 6,304.110018 cal.
How many BTU are in 1 cal?
1 cal equals 0.003965666831 BTU.