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Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result1000 MJ1 GJ = 1000 MJ
EVERYDAY · ENGINEERING · SCIENCE
GJ to MJ Converter
Convert gigajoule (GJ) to megajoule (MJ). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through joule
Enter a gigajoule value to calculate megajoule with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| ergfrom GJ | erg | 1e16 |
| microjoulefrom GJ | µJ | 1e15 |
| millijoulefrom GJ | mJ | 1000000000000 |
| joulefrom GJ | J | 1000000000 |
| kilojoulefrom GJ | kJ | 1000000 |
| megajoulefrom GJ | MJ | 1000 |
| gigajoulefrom GJ | GJ | 1 |
| watt-hourfrom GJ | Wh | 277778 |
| kilowatt-hourfrom GJ | kWh | 277.778 |
| megawatt-hourfrom GJ | MWh | 0.277778 |
| thermochemical caloriefrom GJ | calₜₕ | 239006000 |
| thermochemical kilocaloriefrom GJ | kcalₜₕ | 239006 |
| International Table caloriefrom GJ | calIT | 238846000 |
| International Table British thermal unitfrom GJ | BtuIT | 947817 |
| U.S. thermfrom GJ | therm US | 9.48043 |
| foot pound-forcefrom GJ | ft·lbf | 737562000 |
| electronvoltfrom GJ | eV | 6.24151e27 |
| kiloelectronvoltfrom GJ | keV | 6.24151e24 |
| megaelectronvoltfrom GJ | MeV | 6.24151e21 |
| gigaelectronvoltfrom GJ | GeV | 6.24151e18 |
| ton of TNTfrom GJ | t TNT | 0.239006 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
GJ to MJ Conversion Reference
Gigajoule (GJ) and megajoule (MJ) are units of energy & work. Use this page to convert in either direction.
Conversion Examples
| Gigajoule (GJ) | Megajoule (MJ) |
|---|---|
| 1 GJ | 1000 MJ |
| 5 GJ | 5000 MJ |
| 10 GJ | 10000 MJ |
| 100 GJ | 100000 MJ |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
MJ to GJ (megajoule to gigajoule)
Related Energy & work Conversions
GJ to erg (gigajoule to erg)GJ to µJ (gigajoule to microjoule)GJ to mJ (gigajoule to millijoule)GJ to J (gigajoule to joule)GJ to kJ (gigajoule to kilojoule)GJ to Wh (gigajoule to watt-hour)GJ to kWh (gigajoule to kilowatt-hour)GJ to MWh (gigajoule to megawatt-hour)GJ to calₜₕ (gigajoule to thermochemical calorie)GJ to kcalₜₕ (gigajoule to thermochemical kilocalorie)GJ to calIT (gigajoule to International Table calorie)GJ to BtuIT (gigajoule to International Table British thermal unit)GJ to therm US (gigajoule to U.S. therm)GJ to ft·lbf (gigajoule to foot pound-force)GJ to eV (gigajoule to electronvolt)GJ to keV (gigajoule to kiloelectronvolt)GJ to MeV (gigajoule to megaelectronvolt)GJ to GeV (gigajoule to gigaelectronvolt)GJ to t TNT (gigajoule to ton of TNT)