⚡ Energy & Calories

Convert kilojoules to joules (Energy)

1 kJ = 1,000 J. Convert kilojoules to joules instantly with the converter below.

Value

Result —

How to convert

Multiply the value (kJ) by 1,000 to get J — example: 5 kJ = 5,000 J

Conversion table

Kilojoules to joules conversion table
Kilojoule	Joule
1 kJ	1,000 J
2 kJ	2,000 J
5 kJ	5,000 J
10 kJ	10,000 J
50 kJ	50,000 J
100 kJ	100,000 J
250 kJ	250,000 J
500 kJ	500,000 J
1,000 kJ	1,000,000 J
2,000 kJ	2,000,000 J

About the units

Kilojoule — symbol kJ.
Joule — symbol J.

Frequently asked questions

How many joules are in 1 kilojoule?

1 kJ = 1,000 J.

How do I convert kilojoules to joules?

Multiply the value (kJ) by 1,000 to get J.

How many kilojoules are in 1 joule?

1 J = 0.001 kJ.

Is the conversion accurate?

Yes. It uses the standard international conversion factors and runs entirely in your browser, uploading no data.

Related conversions

Reverse: joules to kilojoules

Kilojoules to other units

kilojoules to calories kilojoules to kilocalories kilojoules to watt-hours kilojoules to kilowatt-hours kilojoules to BTU

Other units to joules

calories to joules kilocalories to joules watt-hours to joules kilowatt-hours to joules BTU to joules

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