Common Converters

Convert Kilojoules to Joules

Use our accurate converter to change kilojoules into joules. This tool is simple to use and works instantly.

How to Calculate

To change kilojoules to joules, you just need to know the conversion factor.

Rule: 1 Kilojoules = 1,000 Joules

Kilojoules to Joules
Pre-defined calculator for direct kilojoules to joules conversion.
Kilojoules (kJ)
0
Joules (J)
Formula: 1 Kilojoules = 1,000 Joules

Unit Information

About Kilojoules

Definition: A kilojoule is equal to 1,000 joules.

History: Commonly used to measure the energy found in food and heat.

Where it is used: Standard unit for measuring energy in chemistry and nutrition.

Kilojoules to Joules Conversion Table

Kilojoules [kj]Joules [j]
0.01 kj10 j
0.1 kj100 j
1 kj1,000 j
2 kj2,000 j
3 kj3,000 j
5 kj5,000 j
10 kj10,000 j
20 kj20,000 j
50 kj50,000 j
100 kj100,000 j
1000 kj1,000,000 j

How to Convert Kilojoules to Joules

Calculation: To convert kilojoules to joules, multiply the value by the conversion factor (1,000).

Example: convert 15 kj to j:
15 kj = 15 × 1,000 j = 15,000 j

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