kcal to Btu converter
1 kilocalory equals 3.965667 BTUs. Conversions use Btu = kcal × 3.9657
kcal → 3.965667 Btu
Btu = kcal × 3.9657
Converter
Worked examples
- 1 kcal = 3.965667 Btu
- 2 kcal = 7.931334 Btu
- 5 kcal = 19.828334 Btu
- 10 kcal = 39.656668 Btu
- 100 kcal = 396.567 Btu
kilocalories (food calories) to BTUs conversion table
| kcal | Btu | Arithmetic |
|---|---|---|
| 1 kcal | 3.965667 Btu | × 3.9657 |
| 2 kcal | 7.931334 Btu | × 3.9657 |
| 3 kcal | 11.897 Btu | × 3.9657 |
| 4 kcal | 15.862667 Btu | × 3.9657 |
| 5 kcal | 19.828334 Btu | × 3.9657 |
| 6 kcal | 23.794001 Btu | × 3.9657 |
| 8 kcal | 31.725335 Btu | × 3.9657 |
| 10 kcal | 39.656668 Btu | × 3.9657 |
| 12 kcal | 47.588002 Btu | × 3.9657 |
| 15 kcal | 59.485002 Btu | × 3.9657 |
| 20 kcal | 79.313337 Btu | × 3.9657 |
| 25 kcal | 99.141671 Btu | × 3.9657 |
| 30 kcal | 118.97 Btu | × 3.9657 |
| 40 kcal | 158.627 Btu | × 3.9657 |
| 50 kcal | 198.283 Btu | × 3.9657 |
| 60 kcal | 237.94 Btu | × 3.9657 |
| 70 kcal | 277.597 Btu | × 3.9657 |
| 80 kcal | 317.253 Btu | × 3.9657 |
| 90 kcal | 356.91 Btu | × 3.9657 |
| 100 kcal | 396.567 Btu | × 3.9657 |
How to convert kcal to Btu
- Take your value in kilocalories (food calories).
- Multiply by 3.9657
- That is your answer in BTUs — no rounding needed until you choose a display precision.
Related conversions
Btu to kcalJ to BtukJ to Btucal to Btukcal to Jkcal to kJkcal to calkcal to Whkcal to kWhall energy units
Questions
How many BTUs in 1 kilocalory?
Exactly 3.965667 Btu. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert kcal to Btu?
Multiply the kilocalories (food calories) figure by 3.9657 — or use the converter above, which updates as you type.
Is kcal to Btu the same as Btu to kcal?
No — they are inverses. One kcal is 3.965667 Btu, while one Btu is 0.2521644 kcal.
What is 1 kcal in Btu?
1 kcal = 3.965667 Btu (see the value page for the full arithmetic).