Convert Ergs to Kilowatt-hours
1 erg equals 2.777777778 × 10⁻¹⁴ kilowatt-hours (kWh).
1 erg = 2.777777778e-14 kWh
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk erg to kilowatt-hour converter to paste a column from Excel.
How to Convert Erg to Kilowatt-hour
- 1 erg = 2.777777778 × 10⁻¹⁴ kWh
- 1 kWh = 36000000000000 erg
- Example: convert 15 erg to kWh: 15 erg = 15 × 2.777777778 × 10⁻¹⁴ kWh = 4.166666667 × 10⁻¹³ kWh
Formula
kWh = erg ÷ 36000000000000
Derivation from SI units:
- 1 erg = 1 dyn·cm = 10⁻⁷ J
- 1 kWh = 1000 W × 3600 s = 3.6 × 10⁶ J
- 1 erg = 1 × 10⁻⁷ J ÷ 3600000 J per kWh = 2.777777777778 × 10⁻¹⁴ kWh
Both units are defined exactly, so the factor is exact. Erg definition: erg; Kilowatt-hour definition: kilowatt-hour.
Worked examples
- A reading of 1000 erg converts to 2.777777778 × 10⁻¹¹ kWh.
1000 erg × 2.777777778 × 10⁻¹⁴ = 2.777777778 × 10⁻¹¹ kWh - A value of 1e6 erg is 2.777777778 × 10⁻⁸ kWh.
1e6 erg × 2.777777778 × 10⁻¹⁴ = 2.777777778 × 10⁻⁸ kWh
Erg to Kilowatt-hour conversion table
| Ergs (erg) | Kilowatt-hours (kWh) |
|---|---|
| 1 erg | 2.777777778 × 10⁻¹⁴ kWh |
| 10 erg | 2.777777778 × 10⁻¹³ kWh |
| 100 erg | 2.777777778 × 10⁻¹² kWh |
| 1000 erg | 2.777777778 × 10⁻¹¹ kWh |
| 10000 erg | 2.777777778 × 10⁻¹⁰ kWh |
| 1e5 erg | 2.777777778 × 10⁻⁹ kWh |
| 1e6 erg | 2.777777778 × 10⁻⁸ kWh |
| 1e7 erg | 2.777777778 × 10⁻⁷ kWh |
| 1e10 erg | 0.0002777777778 kWh |
| 3.828e33 erg | 1.063333333 × 10²⁰ kWh |
Where it's used
Ergs are used for astrophysics (luminosities in erg/s), while kilowatt-hours appear in electricity bills and meters. Both measure energy, work and heat, so the conversion is a fixed factor.
Erg to other energy units
| Conversion | 1 erg equals |
|---|---|
| erg to joule | 1 × 10⁻⁷ J |
| erg to kilojoule | 1 × 10⁻¹⁰ kJ |
| erg to megajoule | 1 × 10⁻¹³ MJ |
| erg to calorie | 2.390057361 × 10⁻⁸ cal |
| erg to kilocalorie | 2.390057361 × 10⁻¹¹ kcal |
| erg to watt-hour | 2.777777778 × 10⁻¹¹ Wh |
| erg to kilowatt-hour | 2.777777778 × 10⁻¹⁴ kWh |
| erg to BTU | 9.478171203 × 10⁻¹¹ BTU |
| erg to therm | 9.48043428 × 10⁻¹⁶ thm |
| erg to electronvolt | 624150907400 eV |
| erg to foot-pound | 7.375621493 × 10⁻⁸ ft·lbf |
Frequently asked questions
How many kilowatt-hours are in 1 erg?
1 erg = 2.777777778 × 10⁻¹⁴ kWh.
How do I convert ergs to kilowatt-hours?
Multiply the value in erg by 2.777777778 × 10⁻¹⁴, or divide it by 36000000000000. For example, 15 erg × 2.777777778 × 10⁻¹⁴ = 4.166666667 × 10⁻¹³ kWh.
Is the erg to kWh conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "erg (erg)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "kilowatt hour (kW·h)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Ergs to Kilowatt-hours. Retrieved October 17, 2026, from https://scientificconverters.com/energy/ergs-to-kilowatt-hours/
IEEE
Scientific Converters, "Convert Ergs to Kilowatt-hours," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/energy/ergs-to-kilowatt-hours/