How to use this Joules to Kilojoules Converter 🤔
Follow these steps to convert given Joules value from Joules units to Kilojoules units.
Enter the input Joules value in the text field.
The given Joules is converted to Kilojoules in realtime ⌚ using the formula, and displayed under the Kilojoules label.
You may copy the resulting Kilojoules value using the Copy button.
Formula
To convert given energy from Joules to Kilojoules, use the following formula.
Kilojoules = Joules/1e3
Calculation
Calculation will be done after you enter a valid input.
Joules to Kilojoules Conversion Table
The following table gives some of the most used conversions from Joules to Kilojoules.
Joules (J)
Kilojoules (kJ)
0.01 J
0.00001kJ
0.1 J
0.0001kJ
1 J
0.001kJ
2 J
0.002kJ
3 J
0.003kJ
4 J
0.004kJ
5 J
0.005kJ
6 J
0.006kJ
7 J
0.007kJ
8 J
0.008kJ
9 J
0.009kJ
10 J
0.01kJ
20 J
0.02kJ
50 J
0.05kJ
100 J
0.1kJ
1000 J
1 kJ
Joules
The Joule (J) is the SI unit of energy. One joule is defined as the amount of energy transferred when a force of one newton is applied over a distance of one meter. It can also be defined as the energy transferred when one watt of power is applied for one second. The joule is a versatile unit used in various scientific and engineering contexts to measure energy, work, and heat. It is commonly used in physics, chemistry, and engineering to quantify the energy content of fuels, the work done by machines, and the energy used or produced in electrical circuits.
Kilojoules
A Kilojoule (kJ) is a unit of energy equal to 1,000 joules. It is commonly used to measure energy in various scientific and engineering contexts, as well as in nutrition to quantify the energy content of foods. One kilojoule is the amount of energy required to apply a force of one newton over a distance of one kilometer, or the energy transferred when one kilowatt of power is applied for one second. Kilojoules are used in fields such as physics, chemistry, and engineering to quantify work, heat, and energy, providing a standard measure for comparing energy content and transfer across different systems and processes.
{
"conversion": "joules-kilojoules",
"x_slug": "joules",
"y_slug": "kilojoules",
"x": "J",
"y": "kJ",
"x_desc": "Joules",
"y_desc": "Kilojoules",
"category": "Energy",
"symbol": "m",
"formula": "x/1e3",
"precision": 11,
"examples": "<div class=\"example\">\n <div class=\"example_head\"><span class=\"example_n\">1</span>\n <h3 class=\"question\">Consider that a battery stores 18,000 joules of energy.<br>Convert this energy generation from Joules to Kilojoules.</h3></div>\n <h4 class=\"answer\">Answer:</h4>\n <p><strong>Given:</strong></p>\n <p>The energy in joules is:</p>\n <p class=\"step\"><span>Energy<sub>(Joules)</sub></span> = 18000</p>\n <p><strong>Formula:</strong></p>\n <p>The formula to convert energy from joules to kilojoules is:</p>\n <p class=\"formula step\"><span>Energy<sub>(Kilojoules)</sub></span> = <span>Energy<sub>(Joules)</sub></span>/1e3</p>\n <p><strong>Substitution:</strong></p>\n <p>Substitute given weight <strong>Energy<sub>(Joules)</sub> = 18000</strong> in the above formula.</p>\n <p class=\"step\"><span>Energy<sub>(Kilojoules)</sub></span> = <span>18000</span>/1e3</p>\n <p class=\"step\"><span>Energy<sub>(Kilojoules)</sub></span> = 18</p>\n <p><strong>Final Answer:</strong></p>\n <p>Therefore, <strong>18000 J</strong> is equal to <strong>18 kJ</strong>.</p>\n <p>The energy is <strong>18 kJ</strong>, in kilojoules.</p>\n </div>\n <div class=\"example\">\n <div class=\"example_head\"><span class=\"example_n\">2</span>\n <h3 class=\"question\">Consider that a capacitor stores 25,000 joules of energy.<br>Convert this energy storage from joules to Kilojoules.</h3></div>\n <h4 class=\"answer\">Answer:</h4>\n <p><strong>Given:</strong></p>\n <p>The energy in joules is:</p>\n <p class=\"step\"><span>Energy<sub>(Joules)</sub></span> = 25000</p>\n <p><strong>Formula:</strong></p>\n <p>The formula to convert energy from joules to kilojoules is:</p>\n <p class=\"formula step\"><span>Energy<sub>(Kilojoules)</sub></span> = <span>Energy<sub>(Joules)</sub></span>/1e3</p>\n <p><strong>Substitution:</strong></p>\n <p>Substitute given weight <strong>Energy<sub>(Joules)</sub> = 25000</strong> in the above formula.</p>\n <p class=\"step\"><span>Energy<sub>(Kilojoules)</sub></span> = <span>25000</span>/1e3</p>\n <p class=\"step\"><span>Energy<sub>(Kilojoules)</sub></span> = 25</p>\n <p><strong>Final Answer:</strong></p>\n <p>Therefore, <strong>25000 J</strong> is equal to <strong>25 kJ</strong>.</p>\n <p>The energy is <strong>25 kJ</strong>, in kilojoules.</p>\n </div>\n ",
"img": "<img class=\"conversion\" src=\"/images/unit/energy/joules-kilojoules.webp\" height=\"360\" width=\"640\" alt=\"Joules to Kilojoules Converter | J to kJ\" />",
"table1n": "<h2><span class=\"x\">Joules</span> to <span class=\"y\">Kilojoules</span> Conversion Table</h2><p>The following table gives some of the most used conversions from Joules to Kilojoules.</p><table><thead><tr><th scope=\"column\" role=\"columnheader\">Joules (<span class=\"unit\">J</span>)</th><th scope=\"column\" role=\"columnheader\">Kilojoules (<span class=\"unit\">kJ</span>)</th><tr></thead><tbody><tr><td>0.01 <span class=\"unit\">J</span></td><td>0<span>.00001</span> <span class=\"unit\">kJ</span></td></tr><tr><td>0.1 <span class=\"unit\">J</span></td><td>0<span>.0001</span> <span class=\"unit\">kJ</span></td></tr><tr><td>1 <span class=\"unit\">J</span></td><td>0<span>.001</span> <span class=\"unit\">kJ</span></td></tr><tr><td>2 <span class=\"unit\">J</span></td><td>0<span>.002</span> <span class=\"unit\">kJ</span></td></tr><tr><td>3 <span class=\"unit\">J</span></td><td>0<span>.003</span> <span class=\"unit\">kJ</span></td></tr><tr><td>4 <span class=\"unit\">J</span></td><td>0<span>.004</span> <span class=\"unit\">kJ</span></td></tr><tr><td>5 <span class=\"unit\">J</span></td><td>0<span>.005</span> <span class=\"unit\">kJ</span></td></tr><tr><td>6 <span class=\"unit\">J</span></td><td>0<span>.006</span> <span class=\"unit\">kJ</span></td></tr><tr><td>7 <span class=\"unit\">J</span></td><td>0<span>.007</span> <span class=\"unit\">kJ</span></td></tr><tr><td>8 <span class=\"unit\">J</span></td><td>0<span>.008</span> <span class=\"unit\">kJ</span></td></tr><tr><td>9 <span class=\"unit\">J</span></td><td>0<span>.009</span> <span class=\"unit\">kJ</span></td></tr><tr><td>10 <span class=\"unit\">J</span></td><td>0<span>.01</span> <span class=\"unit\">kJ</span></td></tr><tr><td>20 <span class=\"unit\">J</span></td><td>0<span>.02</span> <span class=\"unit\">kJ</span></td></tr><tr><td>50 <span class=\"unit\">J</span></td><td>0<span>.05</span> <span class=\"unit\">kJ</span></td></tr><tr><td>100 <span class=\"unit\">J</span></td><td>0<span>.1</span> <span class=\"unit\">kJ</span></td></tr><tr><td>1000 <span class=\"unit\">J</span></td><td>1 <span class=\"unit\">kJ</span></td></tr></table>",
"units": [
[
"watt_hour",
"Watt-hour",
"Wh"
],
[
"kilowatt_hour",
"Kilowatt-hour",
"kWh"
],
[
"megawatt_hour",
"Megawatt-hour",
"MWh"
],
[
"btu",
"British Thermal Unit (BTU)",
"BTU"
],
[
"kilobtu",
"Kilo BTU",
"kBTU"
],
[
"joules",
"Joules",
"J"
],
[
"kilojoules",
"Kilojoules",
"kJ"
],
[
"megajoules",
"Megajoules",
"MJ"
],
[
"gigajoules",
"Gigajoules",
"GJ"
]
],
"x_long_desc": "The Joule (J) is the SI unit of energy. One joule is defined as the amount of energy transferred when a force of one newton is applied over a distance of one meter. It can also be defined as the energy transferred when one watt of power is applied for one second. The joule is a versatile unit used in various scientific and engineering contexts to measure energy, work, and heat. It is commonly used in physics, chemistry, and engineering to quantify the energy content of fuels, the work done by machines, and the energy used or produced in electrical circuits.",
"y_long_desc": "A Kilojoule (kJ) is a unit of energy equal to 1,000 joules. It is commonly used to measure energy in various scientific and engineering contexts, as well as in nutrition to quantify the energy content of foods. One kilojoule is the amount of energy required to apply a force of one newton over a distance of one kilometer, or the energy transferred when one kilowatt of power is applied for one second. Kilojoules are used in fields such as physics, chemistry, and engineering to quantify work, heat, and energy, providing a standard measure for comparing energy content and transfer across different systems and processes."
}
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