Megajoules to Joules Converter
Convert megajoules (MJ) to joules (watt-seconds) (J), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 MJ = 1000000 J
- 1 × 1000000 = 1000000 J
How to convert megajoules to joules
1 MJ = 1,000,000 J, so multiply by 1,000,000 to go from megajoules to joules (watt-seconds). Going the other way, 1 J = 1 × 10⁻⁶ MJ.
J = MJ × 1,000,000 MJ = J × 1
Worked example:
1 MJ = 1000000 J 5 × 1000000 = 5000000 J
Megajoules to joules table
| Megajoules | Joules |
|---|---|
| 1 MJ | 1,000,000 J |
| 2 MJ | 2,000,000 J |
| 3 MJ | 3,000,000 J |
| 4 MJ | 4,000,000 J |
| 5 MJ | 5,000,000 J |
| 6 MJ | 6,000,000 J |
| 7 MJ | 7,000,000 J |
| 8 MJ | 8,000,000 J |
| 9 MJ | 9,000,000 J |
| 10 MJ | 10,000,000 J |
| 15 MJ | 15,000,000 J |
| 20 MJ | 20,000,000 J |
| 25 MJ | 25,000,000 J |
| 30 MJ | 30,000,000 J |
| 40 MJ | 40,000,000 J |
| 50 MJ | 50,000,000 J |
| 75 MJ | 75,000,000 J |
| 100 MJ | 100,000,000 J |
| 250 MJ | 250,000,000 J |
| 500 MJ | 500,000,000 J |
| 1000 MJ | 1,000,000,000 J |
About the units
- Megajoules (MJ)
- Megajoules, a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).
- Joules (J)
- Joules (watt-seconds), a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).
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