| Kilojoule | 1 kJ | 2 kJ | 3 kJ | 4 kJ | 5 kJ | 6 kJ | 7 kJ | 8 kJ | 9 kJ | 10 kJ | 11 kJ | 12 kJ | 13 kJ | 14 kJ | 15 kJ | 16 kJ | 17 kJ | 18 kJ | 19 kJ | 20 kJ | 21 kJ | 22 kJ | 23 kJ | 24 kJ | 25 kJ | 26 kJ | 27 kJ | 28 kJ | 29 kJ | 30 kJ | 31 kJ | 32 kJ | 33 kJ | 34 kJ | 35 kJ | 36 kJ | 37 kJ | 38 kJ | 39 kJ | 40 kJ | 41 kJ | 42 kJ | 43 kJ | 44 kJ | 45 kJ | 46 kJ | 47 kJ | 48 kJ | 49 kJ | 50 kJ | 51 kJ | 52 kJ | 53 kJ | 54 kJ | 55 kJ | 56 kJ | 57 kJ | 58 kJ | 59 kJ | 60 kJ | 61 kJ | 62 kJ | 63 kJ | 64 kJ | 65 kJ | 66 kJ | 67 kJ | 68 kJ | 69 kJ | 70 kJ | 71 kJ | 72 kJ | 73 kJ | 74 kJ | 75 kJ | 76 kJ | 77 kJ | 78 kJ | 79 kJ | 80 kJ | 81 kJ | 82 kJ | 83 kJ | 84 kJ | 85 kJ | 86 kJ | 87 kJ | 88 kJ | 89 kJ | 90 kJ | 91 kJ | 92 kJ | 93 kJ | 94 kJ | 95 kJ | 96 kJ | 97 kJ | 98 kJ | 99 kJ | 100 kJ |
| joule | 1 000 J | 2 000 J | 3 000 J | 4 000 J | 5 000 J | 6 000 J | 7 000 J | 8 000 J | 9 000 J | 10 000 J | 11 000 J | 12 000 J | 13 000 J | 14 000 J | 15 000 J | 16 000 J | 17 000 J | 18 000 J | 19 000 J | 20 000 J | 21 000 J | 22 000 J | 23 000 J | 24 000 J | 25 000 J | 26 000 J | 27 000 J | 28 000 J | 29 000 J | 30 000 J | 31 000 J | 32 000 J | 33 000 J | 34 000 J | 35 000 J | 36 000 J | 37 000 J | 38 000 J | 39 000 J | 40 000 J | 41 000 J | 42 000 J | 43 000 J | 44 000 J | 45 000 J | 46 000 J | 47 000 J | 48 000 J | 49 000 J | 50 000 J | 51 000 J | 52 000 J | 53 000 J | 54 000 J | 55 000 J | 56 000 J | 57 000 J | 58 000 J | 59 000 J | 60 000 J | 61 000 J | 62 000 J | 63 000 J | 64 000 J | 65 000 J | 66 000 J | 67 000 J | 68 000 J | 69 000 J | 70 000 J | 71 000 J | 72 000 J | 73 000 J | 74 000 J | 75 000 J | 76 000 J | 77 000 J | 78 000 J | 79 000 J | 80 000 J | 81 000 J | 82 000 J | 83 000 J | 84 000 J | 85 000 J | 86 000 J | 87 000 J | 88 000 J | 89 000 J | 90 000 J | 91 000 J | 92 000 J | 93 000 J | 94 000 J | 95 000 J | 96 000 J | 97 000 J | 98 000 J | 99 000 J | 100 000 J |
The kilojoule (kJ) is equal to one thousand (103) joules. Nutritional food labels in most countries express energy in kilojoules (kJ).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| Kilojoule | kJ | = 103 joule | = 103 joule | Metric system SI |
| Kilojoules | joules | Kilojoules | joules |
|---|---|---|---|
| 1 | = 1000 | 6 | = 6000 |
| 2 | = 2000 | 7 | = 7000 |
| 3 | = 3000 | 8 | = 8000 |
| 4 | = 4000 | 9 | = 9000 |
| 5 | = 5000 | 10 | = 10000 |
The joule (/ˈdʒuːl/); symbol: J), is a derived unit of energy in the International System of Units. It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of its motion through a distance of one metre (1 newton metre or N⋅m).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| joule | J | The work done when a force of one newton moves the point of its application a distance of one metre in the direction of the force. | = 1 J = 1 m·N = 1 kg·m2/s2 = 1 C·V = 1 W·s | Metric system SI |
| joules | Kilojoules | joules | Kilojoules |
|---|---|---|---|
| 1 | = 0.001 | 6 | = 0.006 |
| 2 | = 0.002 | 7 | = 0.007 |
| 3 | = 0.003 | 8 | = 0.008 |
| 4 | = 0.004 | 9 | = 0.009 |
| 5 | = 0.005 | 10 | = 0.01 |
| Kilojoules | joules |
|---|---|
| 1 | = 1 000 |
| 0.001 | = 1 |
| Symbol | Definition |
|---|---|
| ≡ | exactly equal |
| ≈ | approximately equal to |
| = | equal to |
| digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |