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Convert kilojoule to megajoule

Here you can quickly calculate how many megajoule fit in one kilojoule.

- scroll: formula · table · questions -

  • 1 kJ = 0.001 MJ
  • 1 MJ = 1000 kJ

Kilojoule to megajoule conversion table

kilojoule megajoule
1 0.001
2 0.002
5 0.005
10 0.01
20 0.02
50 0.05
100 0.1

Kilojoule to megajoule formula

To convert kilojoule to megajoule, divide by 1000.

1 kJ = 0.001 MJ
Example: 1 kilojoule = 0.001 megajoule

Common energy conversion mistakes

  • The relationship is exact: 1 kWh = 3.6 MJ (3,600 kJ, because an hour has 3,600 seconds). The common slip is dividing when you should multiply: 10 kWh is 36 MJ, not 2.8. Remember the direction: kWh → MJ means times 3.6.

Quick kilojoule and megajoule conversion quiz

Score: 0

125 kilojoule equals 0.075 megajoule.

Correct answer: 125 kilojoule = 0.125 megajoule.

66 megajoule equals 6.6e+4 kilojoule.

Correct answer: 66 megajoule = 6.6e+4 kilojoule.

120 megajoule equals 2.4e+5 kilojoule.

Correct answer: 120 megajoule = 1.2e+5 kilojoule.

18.5 megajoule equals 1.85e+4 kilojoule.

Correct answer: 18.5 megajoule = 1.85e+4 kilojoule.

40 megajoule equals 2.4e+4 kilojoule.

Correct answer: 40 megajoule = 4.0e+4 kilojoule.

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