Convert Ergs to Electronvolts
1 erg equals 624150907400 electronvolts (eV).
1 erg = 624150907400 eV
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk erg to electronvolt converter to paste a column from Excel.
How to Convert Erg to Electronvolt
- 1 erg = 624150907400 eV
- 1 eV = 1.602176634 × 10⁻¹² erg
- Example: convert 15 erg to eV: 15 erg = 15 × 624150907400 eV = 9362263612000 eV
Formula
eV = erg × 624150907446.1
Derivation from SI units:
- 1 erg = 1 dyn·cm = 10⁻⁷ J
- 1 eV = e × 1 V = 1.602176634 × 10⁻¹⁹ J (exact since 2019)
- 1 erg = 1 × 10⁻⁷ J ÷ 1.602176634 × 10⁻¹⁹ J per eV = 624150907446.1 eV
Both units are defined exactly, so the factor is exact. Erg definition: erg; Electronvolt definition: electronvolt.
Worked examples
- A reading of 1000 erg converts to 624150907400000 eV.
1000 erg × 624150907400 = 624150907400000 eV - A value of 1e6 erg is 6.241509074 × 10¹⁷ eV.
1e6 erg × 624150907400 = 6.241509074 × 10¹⁷ eV
Erg to Electronvolt conversion table
| Ergs (erg) | Electronvolts (eV) |
|---|---|
| 1 erg | 624150907400 eV |
| 10 erg | 6241509074000 eV |
| 100 erg | 62415090740000 eV |
| 1000 erg | 624150907400000 eV |
| 10000 erg | 6.241509074 × 10¹⁵ eV |
| 1e5 erg | 6.241509074 × 10¹⁶ eV |
| 1e6 erg | 6.241509074 × 10¹⁷ eV |
| 1e7 erg | 6.241509074 × 10¹⁸ eV |
| 1e10 erg | 6.241509074 × 10²¹ eV |
| 3.828e33 erg | 2.389249674 × 10⁴⁵ eV |
Where it's used
Ergs are used for astrophysics (luminosities in erg/s), while electronvolts appear in atomic and particle physics. 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 electronvolts are in 1 erg?
1 erg = 624150907400 eV.
How do I convert ergs to electronvolts?
Multiply the value in erg by 624150907400. For example, 15 erg × 624150907400 = 9362263612000 eV.
Is the erg to eV 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)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8 and the fixed elementary charge e.
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 Electronvolts. Retrieved October 17, 2026, from https://scientificconverters.com/energy/ergs-to-electronvolts/
IEEE
Scientific Converters, "Convert Ergs to Electronvolts," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/energy/ergs-to-electronvolts/