Kilocalorie to British thermal unit converter
1 kcal = 3.965667 BTU
This is the Kilocalorie to British thermal unit converter. The factor is fixed: 1 kcal = 3.9656668313908767 BTU. Open a common amount below, or type any value — only selected amounts are indexed.
Common values
Same amount, other units
BTU = kcal × 3.965667 (1 KCAL = 3.965667 BTU)
| kcal | BTU |
|---|---|
| 1 kcal | 3.965667 BTU |
| 100 kcal | 396.566683 BTU |
| 200 kcal | 793.133366 BTU |
| 500 kcal | 1982.833416 BTU |
| 1000 kcal | 3965.666831 BTU |
| 2000 kcal | 7931.333663 BTU |
BTU vs kcal?
Both measure energy. Roughly 1 kcal ≈ 3.97 BTU (IT). Use the exact factor on this page.
Manual conversion?
BTU = kcal × 3.965667 (1 KCAL = 3.965667 BTU)
Reverse?
1 BTU ≈ 0.252164 kilocalorie.
How much is 1 kilocalorie in BTU?
3.965667 BTU (1 kilocalorie = 3.965667 BTU).
What is a BTU?
British thermal unit-energy needed to raise the temperature of water; common for AC and heating capacity ratings.
This hub describes the pair, not a single number. Pages like 1, 10 or 100 Kilocalorie answer exact searches.
NiftyRecipe uses thermochemical energy factors (for example 1 kcal = 4184 J). Results do not change with the time of day.