Kilojoules to Joules

Convert Kilojoules to Joules. 1 kJ equals 1,000 J. Type a value on either side; the formula and tables below show how it works.

kJ
J
1 Kilojoules equals
1,000J

Formula: J = kJ × 1,000. Example: 5 kJ = 5,000 J.

1 Kilojoules in every unit

Joules1,000 J
Calories239.0057 cal
Kilocalories0.239006 kcal
Watt-hours0.277778 Wh
Kilowatt-hours0.000277778 kWh
BTU0.947817 BTU
Therms0.000009478 thm
Electronvolts6,241,509,074,460,762,701,824 eV

Kilojoules to Joules table

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
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

How to convert kilojoules to joules

J = kJ × 1,000

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

About the units

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

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

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

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