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Megajoule to Kilojoule Converter

Convert Megajoule to Kilojoule instantly — live results with exact conversion factors.

1000 kJ

Answer

1 megajoule = 1000 kilojoules. To convert MJ to kJ, multiply by 1000.

Quick Reference Table

Megajoule (MJ) Kilojoule (kJ)
1 1000
2 2000
5 5000
10 10000
20 20000
50 50000
100 100000
250 250000
500 500000
1000 1000000

Formula

Convert Megajoule (MJ) to Kilojoule (kJ) using the relationship: 

kJ = MJ × 1000

How to Convert

  1. Take the value in megajoules (MJ).
  2. Multiply it by 1000 (the conversion factor from MJ to kJ).
  3. The result is the equivalent value in kilojoules (kJ).
  4. Example: 1 MJ = 1000 kJ.

Reverse Conversion

Need it the other direction? Kilojoule to Megajoule conversion.

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FAQ

▸ How many kilojoules are in 1 megajoule?

1 Megajoule equals 1000 kilojoules. Multiply by 1000 to convert MJ to kJ.

▸ What is the formula to convert megajoule to kilojoule?

Multiply the value in megajoules by 1000 to get kilojoules. Formula: kJ = MJ × 1000.

▸ How do I convert megajoules to kilojoules easily?

Enter your value in the converter at the top of this page — the kilojoules result updates live as you type. You can also multiply by 1000 directly.