- Home
- Science & Engineering
- Energy
Energy Converter
Enter a value and choose units — the result appears instantly. This converter supports 25 units, and the table below shows your value in all of them at once.
1 kcal = 4.184 kJ
1 kJ = 0.23900574 kcal
Conversion table
1 kcal =
| Unit | Value |
|---|---|
| Joule J | 4,184 |
| Kilojoule kJ | 4.184 |
| Megajoule MJ | 0.004184 |
| Gigajoule GJ | 0.000004184 |
| Calorie cal | 1,000 |
| Kilocalorie (food Calorie) kcal | 1 |
| Calorie (International Table) cal (IT) | 999.33123 |
| Watt-hour Wh | 1.1622222 |
| Kilowatt-hour kWh | 0.0011622222 |
| Megawatt-hour MWh | 0.0000011622222 |
| Gigawatt-hour GWh | 1.1622222 × 10⁻⁹ |
| Electronvolt eV | 2.6114474 × 10²² |
| Kiloelectronvolt keV | 2.6114474 × 10¹⁹ |
| Megaelectronvolt MeV | 2.6114474 × 10¹⁶ |
| British thermal unit BTU | 3.9656668 |
| Million BTU MMBTU | 0.0000039656668 |
| Therm (US) thm | 0.000039666137 |
| Foot-pound ft⋅lbf | 3,085.96 |
| Erg erg | 41,840,000,000 |
| Kilogram-force meter kgf⋅m | 426.64926 |
| Tonne of oil equivalent toe | 9.9933123 × 10⁻⁸ |
| Tonne of coal equivalent tce | 1.4276453 × 10⁻⁷ |
| Ton of TNT t TNT | 0.000001 |
| Kiloton of TNT kt TNT | 1 × 10⁻⁹ |
| Quad quad | 3.9656668 × 10⁻¹⁵ |
Quick reference
Kilocalorie (food Calorie) → Kilojoule
| kcal | kJ |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 5 | 20.92 |
| 10 | 41.84 |
| 20 | 83.68 |
| 50 | 209.2 |
| 100 | 418.4 |
| 1,000 | 4,184 |
Kilowatt-hour → Megajoule
| kWh | MJ |
|---|---|
| 1 | 3.6 |
| 2 | 7.2 |
| 5 | 18 |
| 10 | 36 |
| 20 | 72 |
| 50 | 180 |
| 100 | 360 |
| 1,000 | 3,600 |
British thermal unit → Kilojoule
| BTU | kJ |
|---|---|
| 1 | 1.0550559 |
| 2 | 2.1101117 |
| 5 | 5.2752793 |
| 10 | 10.550559 |
| 20 | 21.101117 |
| 50 | 52.752793 |
| 100 | 105.50559 |
| 1,000 | 1,055.0559 |