Convert Kilojoules to Joules

Enter your kilojoule value in the form below to get the value calculated in joules.

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Results in Joules:
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1 kJ = 1,000 J

How to Convert Kilojoules to Joules

Convert kilojoules to joules with this simple formula:

joules = kilojoules × 1,000

Converting a kilojoule energy measurement to a joule measurement involves multiplying the energy by the conversion ratio to find the result. One kilojoule is equal to 1,000 joules, so to convert simply multiply by 1,000.

For example, here's how to convert 5 kilojoules to joules using the formula above.
5 kJ = (5 × 1,000) = 5,000 J

Kilojoules and joules are both units used to measure energy. Learn more about energy and find more energy measurement conversion calculators. Kilojoules are an SI derived unit of energy and can be abbreviated as kJ, for example 1 kJ. Joules are an SI derived unit of energy and can be abbreviated as J, for example 1 J.

Convert Joules to Kilojoules

Kilojoule Measurements and Equivalent Joule Conversions

Common kilojoule values converted to the equivalent joule value
Kilojoules Joules
1 kJ 1,000 J
2 kJ 2,000 J
3 kJ 3,000 J
4 kJ 4,000 J
5 kJ 5,000 J
6 kJ 6,000 J
7 kJ 7,000 J
8 kJ 8,000 J
9 kJ 9,000 J
10 kJ 10,000 J
11 kJ 11,000 J
12 kJ 12,000 J
13 kJ 13,000 J
14 kJ 14,000 J
15 kJ 15,000 J
16 kJ 16,000 J
17 kJ 17,000 J
18 kJ 18,000 J
19 kJ 19,000 J
20 kJ 20,000 J
21 kJ 21,000 J
22 kJ 22,000 J
23 kJ 23,000 J
24 kJ 24,000 J
25 kJ 25,000 J
26 kJ 26,000 J
27 kJ 27,000 J
28 kJ 28,000 J
29 kJ 29,000 J
30 kJ 30,000 J
31 kJ 31,000 J
32 kJ 32,000 J
33 kJ 33,000 J
34 kJ 34,000 J
35 kJ 35,000 J
36 kJ 36,000 J
37 kJ 37,000 J
38 kJ 38,000 J
39 kJ 39,000 J
40 kJ 40,000 J

More Kilojoule Energy Conversions

Joules
Convert to Megajoules
1 kJ is equal to 0.001 megajoules
Convert to Gigajoules
1 kJ is equal to 1.0E-6 gigajoules
Calories
Convert to Calories
1 kJ is equal to 239.005736 calories
Convert to Kilocalories
1 kJ is equal to 0.239006 kilocalories
Convert to Megacalories
1 kJ is equal to 0.000239 megacalories
Watts x Time
Convert to Watt-hours
1 kJ is equal to 0.277778 watt-hours
Convert to Kilowatt-hours
1 kJ is equal to 0.000278 kilowatt-hours
Convert to Megawatt-hours
1 kJ is equal to 2.7778E-7 megawatt-hours
Convert to Watt-seconds
1 kJ is equal to 1,000 watt-seconds
Thermal Units
Convert to British Thermal Units
1 kJ is equal to 0.947817 british thermal units
Convert to Million BTU
1 kJ is equal to 9.4782E-7 million BTU
Convert to Therms
1 kJ is equal to 9.4782E-6 therms
Convert to Quads
1 kJ is equal to 9.4782E-16 quads
Electronvolts
Convert to Electronvolts
1 kJ is equal to 6,241,499,999,999,999,606,784 electronvolts
Convert to Kiloelectronvolts
1 kJ is equal to 6,241,500,000,000,000,000 kiloelectronvolts
Convert to Megaelectronvolts
1 kJ is equal to 6,241,500,000,000,000 megaelectronvolts