Table Of Contents
Calories to British thermal units Conversion
1 calories (cal) is equal to 0.003965666831 British thermal units (BTU).
1 cal = 0.003965666831 BTU
or
1 BTU = 252.1644007 cal
Formula
To convert a energy from calories (cal) to British thermal units (BTU), divide the energy in calories by 252.1644007
e(BTU) = e(cal) / 252.1644007
Examples:
Convert 100 calories to British thermal units:
e(BTU) = 100cal / 252.1644007 = 0.3965666831 BTU
Conversion table
| Calories (cal) | British thermal units (BTU) |
|---|---|
| 1 cal | 0.003965667 BTU |
| 2 cal | 0.007931334 BTU |
| 3 cal | 0.011897 BTU |
| 5 cal | 0.019828334 BTU |
| 10 cal | 0.039656668 BTU |
| 20 cal | 0.079313337 BTU |
| 25 cal | 0.099141671 BTU |
| 50 cal | 0.198283342 BTU |
| 100 cal | 0.396566683 BTU |
| 250 cal | 0.991416708 BTU |
| 500 cal | 1.982833416 BTU |
| 1000 cal | 3.965666831 BTU |
| British thermal units (BTU) | Calories (cal) |
|---|---|
| 1 BTU | 252.164400722 cal |
| 2 BTU | 504.328801444 cal |
| 3 BTU | 756.493202165 cal |
| 5 BTU | 1260.822003609 cal |
| 10 BTU | 2521.644007218 cal |
| 20 BTU | 5043.288014436 cal |
| 25 BTU | 6304.110018045 cal |
| 50 BTU | 12608.22003609 cal |
| 100 BTU | 25216.44007218 cal |
| 250 BTU | 63041.100180449 cal |
| 500 BTU | 126082.200360899 cal |
| 1000 BTU | 252164.400721797 cal |
Frequently asked questions
How do I convert calories to British thermal units?
Divide the value in calories by 252.1644007 to get the result in British thermal units. For example, 5 cal ÷ 252.1644007 = 0.019828334 BTU.
How many British thermal units are in 1 calories?
1 calories (cal) is equal to 0.003965667 British thermal units (BTU).
How do I convert British thermal units back to calories?
Use the inverse operation: multiply the value in British thermal units by 252.1644007 to get the result in calories.
How accurate is the calories to British thermal units conversion?
The converter multiplies by the conversion factor 252.1644007 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
