Gigajoules to Megajoules Converter
EngineeringJoules, calories, kilowatt-hours and more.
How to convert Gigajoules to Megajoules
Multiply the gigajoules value by 1,000: 1 GJ = 1,000 MJ. Going the other way, 1 MJ = 0.001 GJ, so divide by 1,000 or use the Megajoules to Gigajoules converter.
About these units
Megajoules (MJ)
A megajoule is one million joules. A kilowatt-hour is 3.6 MJ, and vehicle fuels contain roughly 30 to 45 MJ per liter or kilogram.
Gigajoules to Megajoules conversion table
| Gigajoules (GJ) | Megajoules (MJ) |
|---|---|
| 1 GJ | 1,000 MJ |
| 2 GJ | 2,000 MJ |
| 3 GJ | 3,000 MJ |
| 4 GJ | 4,000 MJ |
| 5 GJ | 5,000 MJ |
| 10 GJ | 10,000 MJ |
| 20 GJ | 20,000 MJ |
| 25 GJ | 25,000 MJ |
| 50 GJ | 50,000 MJ |
| 100 GJ | 100,000 MJ |
| 500 GJ | 500,000 MJ |
| 1,000 GJ | 1e+6 MJ |
More gigajoules conversions
- Gigajoules to Joules1 GJ = 1e+9 J
- Gigajoules to Kilojoules1 GJ = 1e+6 kJ
- Gigajoules to Millijoules1 GJ = 1e+12 mJ
- Gigajoules to Microjoules1 GJ = 1e+15 µJ
- Gigajoules to Nanojoules1 GJ = 1e+18 nJ
- Gigajoules to Calories1 GJ = 2.3901e+8 cal
- Gigajoules to Watt Hours1 GJ = 277,778 Wh
- Gigajoules to British Thermal Units1 GJ = 947,813 BTU
- Gigajoules to Ergs1 GJ = 1e+16 erg
See every unit on the Energy Converter.