Ergs (erg) to Megajoules (MJ) Conversion
Ergs
The erg is a unit of energy in the CGS (centimetre-gram-second) system, equal to exactly 10⁻⁷ joules. The word derives from the Greek ergon (work). Though largely superseded by the joule in modern science, the erg persists in astrophysics — stellar luminosities and gamma-ray burst energies are sometimes expressed in ergs — and in classical physics texts. One erg is approximately the energy required to move a mosquito by 1 cm. The total energy released by the Sun per second is approximately 3.8 × 10³³ ergs.
Megajoules
The megajoule (MJ) is a unit of energy equal to exactly 1,000,000 joules (10⁶ J). It is used in energy policy, engineering, and physics for large-scale energy quantities. One kilowatt-hour (kWh) equals exactly 3.6 MJ — the conversion fundamental to understanding electricity bills. A litre of petrol contains approximately 34 MJ of chemical energy. The explosive yield of conventional explosives is sometimes expressed in megajoules.
| Ergs (erg) | Megajoules (MJ) |
|---|---|
| 0.1 erg | 0.00000000000001 MJ |
| 1 erg | 0.0000000000001 MJ |
| 2 erg | 0.0000000000002 MJ |
| 3 erg | 0.0000000000003 MJ |
| 5 erg | 0.0000000000005 MJ |
| 10 erg | 0.000000000001 MJ |
| 20 erg | 0.000000000002 MJ |
| 30 erg | 0.000000000003 MJ |
| 50 erg | 0.000000000005 MJ |
| 100 erg | 0.00000000001 MJ |
| 1000 erg | 0.0000000001 MJ |
Frequently Asked Questions (FAQ)
How many megajoules are in 1 ergs?
1 ergs (erg) is exactly 0 megajoules (MJ).
How do I convert ergs to megajoules?
Multiply the value in ergs by 0 to get the result in megajoules. Or use the converter above — type any number and see the result instantly.