Table Of Contents
British thermal units to calories Conversion
1 British thermal units (BTU) is equal to 252.1644007 calories (cal).
1 BTU = 252.1644007 cal
or
1 cal = 0.003965666831 BTU
Formula
To convert a energy from British thermal units (BTU) to calories (cal), multiply the energy in British thermal units by 252.1644007
e(cal) = e(BTU) × 252.1644007
Examples:
Convert 50 British thermal units to calories:
e(cal) = 50BTU × 252.1644007 = 12608.22004 cal
Conversion table
| 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 |
| 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 |
Frequently asked questions
How do I convert British thermal units to calories?
Multiply the value in British thermal units by 252.1644007 to get the result in calories. For example, 5 BTU × 252.1644007 = 1260.822003609 cal.
How many calories are in 1 British thermal units?
1 British thermal units (BTU) is equal to 252.164400722 calories (cal).
How do I convert calories back to British thermal units?
Use the inverse operation: divide the value in calories by 252.1644007 to get the result in British thermal units.
How accurate is the British thermal units to calories 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.
