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Convert cal to BTU
Convert calorie (thermochemical) (cal) to british thermal unit (BTU) instantly. Free, no signup, nothing is uploaded — everything runs in your browser.
Calorie (thermochemical) (cal)
To
0.0039656668
British thermal unit (BTU)
Calorie (thermochemical) to British thermal unit conversion table
| Calorie (thermochemical) [cal] | British thermal unit [BTU] |
|---|---|
| 0.01 | 3.965667e-5 |
| 0.1 | 0.00039657 |
| 1 | 0.00396567 |
| 2 | 0.00793133 |
| 3 | 0.011897 |
| 5 | 0.01982833 |
| 10 | 0.03965667 |
| 20 | 0.07931334 |
| 50 | 0.19828334 |
| 100 | 0.39656668 |
| 1,000 | 3.96566684 |
How to convert calorie (thermochemical) to british thermal unit
BTU = cal ÷ 252.164
Example: 2,521.64 cal = 2,521.64 ÷ 252.164 = 10 BTU
To convert back (british thermal unit to calorie (thermochemical)): cal = BTU × 252.164
What is a calorie (thermochemical)?
A calorie (cal), or gram calorie, is a unit of energy equal to the heat needed to raise one gram of water by one degree Celsius. The small-c chemistry calorie, distinct from the food Calorie (kcal).
What is a british thermal unit?
A British thermal unit (BTU) is a unit of energy equal to the heat needed to raise one pound of water by one degree Fahrenheit. Standard for HVAC and gas bills in the US.