Joules to Kilojoules

Convert Joules to Kilojoules. 1 J equals 0.001 kJ. Type a value on either side; the formula and tables below show how it works.

J
kJ
1 Joules equals
0.001kJ

Formula: kJ = J × 0.001. Example: 5 J = 0.005 kJ.

1 Joules in every unit

Kilojoules0.001 kJ
Calories0.239006 cal
Kilocalories0.000239006 kcal
Watt-hours0.000277778 Wh
Kilowatt-hours0.000000278 kWh
BTU0.000947817 BTU
Therms0.000000009 thm
Electronvolts6,241,509,074,460,763,136 eV

Joules to Kilojoules table

JoulesKilojoules
0.1 J0.0001 kJ
0.25 J0.00025 kJ
0.5 J0.0005 kJ
1 J0.001 kJ
2 J0.002 kJ
3 J0.003 kJ
4 J0.004 kJ
5 J0.005 kJ
10 J0.01 kJ
15 J0.015 kJ
20 J0.02 kJ
25 J0.025 kJ
50 J0.05 kJ
75 J0.075 kJ
100 J0.1 kJ
250 J0.25 kJ
500 J0.5 kJ
1,000 J1 kJ
KilojoulesJoules
0.1 kJ100 J
0.25 kJ250 J
0.5 kJ500 J
1 kJ1,000 J
2 kJ2,000 J
3 kJ3,000 J
4 kJ4,000 J
5 kJ5,000 J
10 kJ10,000 J
15 kJ15,000 J
20 kJ20,000 J
25 kJ25,000 J
50 kJ50,000 J
75 kJ75,000 J
100 kJ100,000 J
250 kJ250,000 J
500 kJ500,000 J
1,000 kJ1,000,000 J

How to convert joules to kilojoules

kJ = J × 0.001

Multiply the value in joules by 0.001. To go the other way, divide by the same number, or multiply by 1,000. For example, 5 J × 0.001 = 0.005 kJ.

About the units

Joules (J). The SI unit of energy: the work done by a force of one newton over one meter.

Kilojoules (kJ). 1,000 joules. Food energy on labels in Australia and the EU.

Other energy conversions

Joules to Kilojoules · Joules to Calories · Joules to Kilocalories · Joules to Watt-hours · Joules to Kilowatt-hours · Joules to BTU · Joules to Therms · Joules to Electronvolts · Kilojoules to Joules · Kilojoules to Calories · Kilojoules to Kilocalories · Kilojoules to Watt-hours · Kilojoules to Kilowatt-hours · Kilojoules to BTU · Kilojoules to Therms · Kilojoules to Electronvolts · Calories to Kilojoules · Kilocalories to Kilojoules · Watt-hours to Kilojoules · Kilowatt-hours to Kilojoules · BTU to Kilojoules · Therms to Kilojoules · Electronvolts to Kilojoules

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