4.2 Joules to Kilojoules
Convert 4.2 joules (J) to kilojoules (kJ) with formulas, examples, and conversion tables.
J
kJ
4.2 Joules (J) = 0.0042 Kilojoules (kJ)
Round to:
Step-by-Step Solution
1Write the conversion factor:
1 Kilojoule = 1000 Joules
2Divide the value by the conversion factor:
4.2 ÷ 1000 = 0.0042
3Result:
4.2 Joules (J) = 0.0042 Kilojoules (kJ)
Joules to Kilojoules Conversion Table
| Joules | Kilojoules |
|---|---|
| 1 J | 0.001 kJ |
| 2 J | 0.002 kJ |
| 3 J | 0.003 kJ |
| 4 J | 0.004 kJ |
| 4.2 J | 0.0042 kJ |
| 5 J | 0.005 kJ |
| 10 J | 0.01 kJ |
| 20 J | 0.02 kJ |
| 50 J | 0.05 kJ |
| 100 J | 0.1 kJ |
4.2 Joules in Other Units
| Unit | 4.2 J = |
|---|---|
| Joules to Kilojoules | 0.0042 kJ |
| Joules to Megajoules | 4.2e-6 MJ |
| Joules to Gigajoules | 4.2e-9 GJ |
| Joules to Watt-hours | 0.00116666666667 Wh |
| Joules to Kilowatt-hours | 1.16666666667e-6 kWh |
| Joules to Megawatt-hours | 1.16666666667e-9 MWh |
| Joules to Calories | 1.00382409178 cal |
| Joules to Kilocalories | 0.00100382409178 kcal |
| Joules to BTU | 0.0039808162569 BTU |
| Joules to Therms | 3.98083190539e-8 therm |
| Joules to Foot-pounds | 3.09775633934 ft·lb |
| Joules to Electronvolts | 2.62142830394e19 eV |
| Joules to Ergs | 42000000 erg |