Energy conversion
1 kilocalorie (kcal) equals 3.965666831391 btu (international table) (BTUₕᵀ). Enter any value below to convert from kcal to BTUₕᵀ.
Enter a value and choose units. Results update instantly.
1 kcal = 3.9656668314 BTUₕᵀ
| Unit | Value |
|---|---|
| Joule J | 4,184 |
| Kilojoule kJ | 4.184 |
| Thermochemical calorie cal | 1,000 |
| Kilocalorie kcal | 1 |
| Watt-hour Wh | 1.1622222222 |
| Kilowatt-hour kWh | 0.0011622222 |
| BTU (International Table) BTUₕᵀ | 3.9656668314 |
| Foot-pound ft·lb | 3,085.9600325761 |
| Electronvolt eV | 2.6114473968e22 |
Formula
Use this relationship for a direct conversion:
2 kcal = 7.9313336628 BTUₕᵀ.
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
Quick reference
| Kilocalorie (kcal) | BTU (International Table) (BTUₕᵀ) |
|---|---|
| 0.01 | 0.0396566683 |
| 0.1 | 0.3965666831 |
| 1 | 3.9656668314 |
| 2 | 7.9313336628 |
| 5 | 19.828334157 |
| 10 | 39.6566683139 |
| 25 | 99.1416707848 |
| 50 | 198.2833415695 |
| 100 | 396.5666831391 |
| 1,000 | 3,965.6668313909 |
From unit
One thousand thermochemical calories.
Symbol: kcal
To unit
The International Table British thermal unit.
Symbol: BTUₕᵀ
Keep converting
Source
Definitions are checked against NIST SP 811: Energy units. Calculations use full internal precision before display rounding.
View the complete energy converterQuestions
Use the formula BTUₕᵀ = kcal x 3.965666831391. 1 kilocalorie (kcal) equals 3.965666831391 btu (international table) (BTUₕᵀ).
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
