Convert calorie to british thermal unit
Here you can quickly calculate how many british thermal unit fit in one calorie.
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- 1 cal = 0.003966 BTU
- 1 BTU = 252.164401 cal
Conversion from calorie to british thermal unit example
- 1 calorie = 0.003966 british thermal unit
Calorie to british thermal unit conversion table
| calorie | british thermal unit |
|---|---|
| 1 | 0.003966 |
| 2 | 0.007931 |
| 5 | 0.019828 |
| 10 | 0.039657 |
| 20 | 0.079313 |
| 50 | 0.198283 |
| 100 | 0.396567 |
Formula to convert calorie to british thermal unit
To convert calorie to british thermal unit, multiply by 0.003966.
1 cal = 0.003966 BTU
Example: 1 calorie = 0.003966 british thermal unit
Common mistakes
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Food 'calories' are actually kilocalories: 1 kcal = 1,000 cal. A '500-calorie' meal therefore contains 500 kcal, half a million small calories. Labels write the same thing as 'kcal' or as 'Cal' with a capital C.
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The 'BTU' rating on AC units and heat pumps almost always means BTU per hour, a power, not an amount of energy. A '12,000 BTU' unit delivers about 3.5 kW of cooling continuously, not a fixed energy budget. Compare via 1 kW ≈ 3,412 BTU/h.
Quick calorie to/from british thermal unit conversion quiz
Score:
0
17.9 british thermal unit equals 9.03e+3 calorie.
Correct answer: 17.9 british thermal unit = 4.51e+3 calorie.
6.1 british thermal unit equals 2.31e+3 calorie.
Correct answer: 6.1 british thermal unit = 1.54e+3 calorie.
217 calorie equals 1.72 british thermal unit.
Correct answer: 217 calorie = 0.861 british thermal unit.