21 Kilojoules to Kilocalories
Convert 21 kilojoules (kJ) to kilocalories (kcal) with formulas, examples, and conversion tables.
kJ
kcal
21 kJ = 5.0191 kcal
Full precision:5.0191 kcal
Step-by-Step Solution
To convert 21 kilojoules to kilocalories, we divide by 4.184 because one kilocalorie equals exactly 4.184 kilojoules.
1 kilocalorie = 4.184 kilojoules
Since there are 4.184 kilojoules in every kilocalorie, we divide our value by this factor:
21 ÷ 4.184 = 5.0191 kilocalories
So 21 kilojoules = 5.0191 kilocalories.
Quick check: 5.0191 × 4.184 = 21 kilojoules
Kilojoules to Kilocalories Conversion Table
| Kilojoules | Kilocalories |
|---|---|
| 1 kJ | 0.23901 kcal |
| 2 kJ | 0.47801 kcal |
| 3 kJ | 0.71702 kcal |
| 4 kJ | 0.95602 kcal |
| 5 kJ | 1.195 kcal |
| 10 kJ | 2.3901 kcal |
| 20 kJ | 4.7801 kcal |
| 21 kJ | 5.0191 kcal |
| 50 kJ | 11.9503 kcal |
| 100 kJ | 23.9006 kcal |
21 Kilojoules in Other Units
| Unit | 21 kJ = |
|---|---|
| Kilojoules to Joules | 21000 J |
| Kilojoules to Megajoules | 0.021 MJ |
| Kilojoules to Gigajoules | 0.000021 GJ |
| Kilojoules to Watt-hours | 5.8333 Wh |
| Kilojoules to Kilowatt-hours | 0.0058333 kWh |
| Kilojoules to Megawatt-hours | 0.00000583 MWh |
| Kilojoules to Calories | 5019.12 cal |
| Kilojoules to Kilocalories | 5.0191 kcal |
| Kilojoules to BTU | 19.9041 BTU |
| Kilojoules to Therms | 0.00019904 therm |
| Kilojoules to Foot-pounds | 15488.78 ft·lb |
| Kilojoules to Electronvolts | 1.3107e+23 eV |
| Kilojoules to Ergs | 2.1e+11 erg |