Joules to Kilojoules Calculator
How to use this Joules to Kilojoules Converter 🤔
Follow these steps to convert given energy from the units of Joules to the units of Kilojoules.
- Enter the input Joules value in the text field.
- The calculator converts the given Joules into Kilojoules in realtime ⌚ using the conversion formula, and displays under the Kilojoules label. You do not need to click any button. If the input changes, Kilojoules value is re-calculated, just like that.
- You may copy the resulting Kilojoules value using the Copy button.
- You can also reset the input by clicking on Reset button present below the input field.
Calculation
Calculation will be done after you enter a valid input.
Examples
1
Consider that a battery stores 18,000 joules of energy.
Convert this energy generation from Joules to Kilojoules.
Answer
Given:
Energy in Joules = 18000 J
Converting Energy from Joules to Kilojoules...
The formula to convert from Joules to Kilojoules is:
Energy(Kilojoules) = Energy(Joules)/1e3
Substitute given Energy(Joules) = 18000 in the above formula.
Energy(Kilojoules) = 18000/1e3
Energy(Kilojoules) = 18
Therefore, 18000 J is equal to 18 kJ.
2
Consider that a capacitor stores 25,000 joules of energy.
Convert this energy storage from joules to Kilojoules.
Answer
Given:
Energy in Joules = 25000 J
Converting Energy from Joules to Kilojoules...
The formula to convert from Joules to Kilojoules is:
Energy(Kilojoules) = Energy(Joules)/1e3
Substitute given Energy(Joules) = 25000 in the above formula.
Energy(Kilojoules) = 25000/1e3
Energy(Kilojoules) = 25
Therefore, 25000 J is equal to 25 kJ.
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 | 0.00001 kJ |
| 0.1 J | 0.0001 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 |
| 50 J | 0.05 kJ |
| 100 J | 0.1 kJ |
| 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.
Frequently Asked Questions (FAQs)
1. What is the formula for converting Joules to Kilojoules in Energy?
The formula to convert Joules to Kilojoules in Energy is:
Joules/1e3
2. Is this tool free or paid?
This Energy conversion tool, which converts Joules to Kilojoules, is completely free to use.
3. How do I convert Energy from Joules to Kilojoules?
To convert Energy from Joules to Kilojoules, you can use the following formula:
Joules/1e3
For example, if you have a value in Joules, you substitute that value in place of Joules in the above formula, and solve the mathematical expression to get the equivalent value in Kilojoules.
{
"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>Given:</p>\n <p class=\"step\">Energy in Joules = 18000 J</p>\n <p>Converting Energy from Joules to Kilojoules...</p>\n <p>The formula to convert 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>Substitute given <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 class=\"answer\">Therefore, <strong>18000 J</strong> is equal to <strong>18 kJ</strong>.</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>Given:</p>\n <p class=\"step\">Energy in Joules = 25000 J</p>\n <p>Converting Energy from Joules to Kilojoules...</p>\n <p>The formula to convert 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>Substitute given <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 class=\"answer\">Therefore, <strong>25000 J</strong> is equal to <strong>25 kJ</strong>.</p>\n </div>\n ",
"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>Joules (<span class=\"unit\">J</span>)</th><th>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."
}
ConvertOnline