Joules (J) to kilojoules (kJ), energy conversion calculator and how to convert.
Enter the energy in joules and press the Convert button:
Kilojoules to Joules conversion ►
One joule is equal to thousandth of a kilojoule:
5J = 0.005kJ
The energy in kilojoules E(kJ) is equal to the energy in joules E(J) divided by 1000:
E(kJ) = E(J) / 1000
Convert 500 joules to kilojoules.
The energy E in kilojoules (kJ) is equal to 500 joules (J) divided by 1000:
E(kJ) = 500J / 1000 = 0.5kJ
Convert 800 joules to kilojoules.
The energy E in kilojoules (kJ) is equal to 800 joules (J) divided by 1000:
E(kJ) = 800J / 1000 = 0.8kJ
Convert 1800 joules to kilojoules.
The energy E in kilojoules (kJ) is equal to 1800 joules (J) divided by 1000:
E(kJ) = 1800J / 1000 = 1.8kJ
Convert 2500 joules to kilojoules.
The energy E in kilojoules (kJ) is equal to 2500 joules (J) divided by 1000:
E(kJ) = 2500J / 1000 = 2.5kJ
| Energy (J) | Energy (kJ) |
|---|---|
| 1 J | 0.001 kJ |
| 2 J | 0.002 kJ |
| 3 J | 0.003 kJ |
| 4 J | 0.004 kJ |
| 5 J | 0.005 kJ |
| 6 J | 0.006 kJ |
| 7 J | 0.007 kJ |
| 8 J | 0.008 kJ |
| 9 J | 0.009 kJ |
| 10 J | 0.01 kJ |
| 20 J | 0.02 kJ |
| 30 J | 0.03 kJ |
| 40 J | 0.04 kJ |
| 50 J | 0.05 kJ |
| 60 J | 0.06 kJ |
| 70 J | 0.07 kJ |
| 80 J | 0.08 kJ |
| 90 J | 0.09 kJ |
| 100 J | 0.1 kJ |
| 200 J | 0.2 kJ |
| 300 J | 0.3 kJ |
| 400 J | 0.4 kJ |
| 500 J | 0.5 kJ |
| 600 J | 0.6 kJ |
| 700 J | 0.7 kJ |
| 800 J | 0.8 kJ |
| 900 J | 0.9 kJ |
| 1000 J | 1 kJ |
| 2000 J | 2 kJ |
| 3000 J | 3 kJ |
| 4000 J | 4 kJ |
| 5000 J | 5 kJ |
| 6000 J | 6 kJ |
| 7000 J | 7 kJ |
| 8000 J | 8 kJ |
| 9000 J | 9 kJ |
| 10000 J | 10 kJ |
| 100000 J | 100 kJ |
The joule and kilojoule are units of the International System of Units (SI) for measuring energy. The standard symbol for joule is J[1], while the symbol for kilojoule is KJ. 1 J is exactly 0.001 KJ, so there are 1,000 joules in one kilojoule.
Joules and kilojoules are used to measure energy, but differ in magnitude. While the kilojoule is a derivative of the joule, the joule itself is a derived metric, which is equal to the energy transferred to an object when a force of one Newton acts on it in the direction of its motion through a distance of one meter ( 1 Newton Meter or N⋅m). A similar definition is the energy dissipated as heat by an electric current of one ampere passing for one second through a resistance of one ohm.
The energy unit is named after the 19th-century English physicist James Prescott Joule (1818–1889), who had significant contributions to physics, particularly relating to the nature of heat, and the discovery of its relationship to mechanical work. is given credit for.
The conversion from joules to kilojoules is used for calculations related to energy requirements in machinery, electrical grids, as well as in biological entities. This conversion is quite simple - all you have to do is use the formula:
J / 1,000 = kJ
Naturally, having a calculator will make the calculations easier, but moving the decimal point 3 position to the right will yield the same result.
Sample Task: Convert 2500 J to KJ. Solution:
Formula:
J / 1000 = kJ
Calculation:
2200 J / 1,000 = 2.20 kJ
Final result:
2200 J equals 2.20 kJ . Is
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