FreeUnitConvertor

Megajoules to Kilojoules

Convert megajoules (MJ) to kilojoules (kJ). Type in either box; the other updates as you go.

⇄

1 MJ = 1,000 kJ

1 megajoule equals1,000 kJ
1 kilojoule equals0.001 MJ
FormulakJ = MJ × 1,000

How to convert megajoules to kilojoules

To convert megajoules to kilojoules, multiply the number of megajoules by 1,000.

kJ = MJ × 1,000

Example

Convert 5 megajoules to kilojoules:

5 MJ × 1,000 = 5,000 kJ

Megajoule to kilojoule conversion chart

Megajoules (MJ)Kilojoules (kJ)
1 MJ1,000 kJ
2 MJ2,000 kJ
3 MJ3,000 kJ
4 MJ4,000 kJ
5 MJ5,000 kJ
6 MJ6,000 kJ
7 MJ7,000 kJ
8 MJ8,000 kJ
9 MJ9,000 kJ
10 MJ10,000 kJ
12 MJ12,000 kJ
15 MJ15,000 kJ
20 MJ20,000 kJ
25 MJ25,000 kJ
30 MJ30,000 kJ
40 MJ40,000 kJ
50 MJ50,000 kJ
60 MJ60,000 kJ
70 MJ70,000 kJ
75 MJ75,000 kJ
80 MJ80,000 kJ
90 MJ90,000 kJ
100 MJ100,000 kJ
150 MJ150,000 kJ
200 MJ200,000 kJ
250 MJ250,000 kJ
500 MJ500,000 kJ
1,000 MJ1,000,000 kJ

Going the other way? See the kilojoules to megajoules chart.

About the units

Megajoule (MJ)

A megajoule is 1,000,000 joules, about the kinetic energy of a one-tonne car at 160 km/h.

Kilojoule (kJ)

A kilojoule is 1,000 joules. Food labels in Australia and Europe give energy in kJ next to kcal.

Frequently asked questions

How many kilojoules are in a megajoule?

There are 1,000 kilojoules in a megajoule.

How many megajoules are in a kilojoule?

There are 0.001 megajoules in a kilojoule.

How do you convert megajoules to kilojoules?

To convert megajoules to kilojoules, multiply the number of megajoules by 1,000.

What is 5 megajoules in kilojoules?

5 megajoules equals 5,000 kilojoules.

Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.