Ergs (erg) to Kilojoules (kJ) 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 Though largely superseded by the joule in modern science, the erg persists in astrophysics — stellar luminosities and gamma-ray burst energies are sometimes expressed in ergs — and in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.
Kilojoules
The kilojoule (kJ) is a unit of energy equal to exactly 1,000 joules. It is the standard unit for expressing food energy in most countries outside the United States, where food labels display energy in both kilojoules and kilocalories (kcal). One kilocalorie equals exactly 4.184 kilojoules. In thermodynamics and chemistry, reaction enthalpies and bond energies are commonly tabulated in kilojoules per mole (kJ/mol).
| Ergs (erg) | Kilojoules (kJ) |
|---|---|
| 0.1 erg | 0.00000000001 kJ |
| 1 erg | 0.0000000001 kJ |
| 2 erg | 0.0000000002 kJ |
| 3 erg | 0.0000000003 kJ |
| 5 erg | 0.0000000005 kJ |
| 10 erg | 0.000000001 kJ |
| 20 erg | 0.000000002 kJ |
| 30 erg | 0.000000003 kJ |
| 50 erg | 0.000000005 kJ |
| 100 erg | 0.00000001 kJ |
| 1000 erg | 0.0000001 kJ |
Frequently Asked Questions (FAQ)
How many kilojoules are in 1 ergs?
1 ergs (erg) is exactly 0.0000000001 kilojoules (kJ).
How do I convert ergs to kilojoules?
Multiply the value in ergs by 0.0000000001 to get the result in kilojoules. Or use the converter above — type any number and see the result instantly.