Ergs (erg) to Watt-hours (W·h) 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 Though largely superseded by the joule in modern science, the erg persists in astrophysics — stellar luminosities and gamma-ray burst energies are sometimes expressed in ergs — and in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.
Watt-hours
The watt-hour (W·h) is a unit of energy equal to exactly 3,600 joules, defined as the energy consumed by a one-watt device operating for one hour. It is used in electrical engineering and consumer electronics for expressing battery capacities: a smartphone battery typically holds 10–20 Wh. In aviation, aircraft battery capacities are specified in watt-hours for international transport regulations (lithium batteries above 100 Wh face restrictions).
| Ergs (erg) | Watt-hours (W·h) |
|---|---|
| 0.1 erg | 0.00000000000278 W·h |
| 1 erg | 0.0000000000278 W·h |
| 2 erg | 0.0000000000556 W·h |
| 3 erg | 0.0000000000833 W·h |
| 5 erg | 0.000000000139 W·h |
| 10 erg | 0.000000000278 W·h |
| 20 erg | 0.000000000556 W·h |
| 30 erg | 0.000000000833 W·h |
| 50 erg | 0.00000000139 W·h |
| 100 erg | 0.00000000278 W·h |
| 1000 erg | 0.0000000278 W·h |
Frequently Asked Questions (FAQ)
How many watt-hours are in 1 ergs?
1 ergs (erg) is exactly 0 watt-hours (W·h).
How do I convert ergs to watt-hours?
Multiply the value in ergs by 0 to get the result in watt-hours. Or use the converter above — type any number and see the result instantly.