Convert british thermal units to calorie (thermochemical)s
1 BTU = 252.164400722 cal — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
How to convert british thermal units to calorie (thermochemical)s
Multiply the number of british thermal units by 252.164400722 to get calorie (thermochemical)s.
British thermal unit: International Table BTU, exactly 1055.055 852 62 J. HVAC capacity is quoted in BTU/h.
Calorie (thermochemical): Exactly 4.184 J. The "small" calorie.
British thermal unit to Calorie (thermochemical) conversion table
| British thermal units (BTU) | Calorie (thermochemical)s (cal) |
|---|---|
| 1 BTU | 252.1644 |
| 2 BTU | 504.3288 |
| 3 BTU | 756.4932 |
| 5 BTU | 1260.822 |
| 10 BTU | 2521.644 |
| 20 BTU | 5043.288 |
| 25 BTU | 6304.11 |
| 50 BTU | 12 608.22 |
| 100 BTU | 25 216.44 |
| 250 BTU | 63 041.1 |
| 500 BTU | 126 082.2 |
| 1000 BTU | 252 164.4 |
Calorie (thermochemical) to British thermal unit conversion table
| Calorie (thermochemical)s (cal) | British thermal units (BTU) |
|---|---|
| 1 cal | 0.003 965 666 8 |
| 2 cal | 0.007 931 333 7 |
| 3 cal | 0.011 897 |
| 5 cal | 0.019 828 334 |
| 10 cal | 0.039 656 668 |
| 20 cal | 0.079 313 337 |
| 25 cal | 0.099 141 671 |
| 50 cal | 0.198 283 34 |
| 100 cal | 0.396 566 68 |
| 250 cal | 0.991 416 71 |
| 500 cal | 1.982 833 4 |
| 1000 cal | 3.965 666 8 |
Frequently asked
How many calorie (thermochemical)s are in a british thermal unit?
One british thermal unit equals 252.1644007 calorie (thermochemical)s (BTU → cal). That figure is exact, not rounded.
How do you convert british thermal units to calorie (thermochemical)s?
Multiply the number of british thermal units by 252.164400722 to get calorie (thermochemical)s.
What is 1 cal in british thermal units?
One calorie (thermochemical) is 0.003965666831 british thermal units.
What is 10 BTU in cal?
10 BTU = 2521.644 cal.
What exactly is a british thermal unit?
International Table BTU, exactly 1055.055 852 62 J. HVAC capacity is quoted in BTU/h.
What exactly is a calorie (thermochemical)?
Exactly 4.184 J. The "small" calorie.