Convert Kilowatt-hours to Electronvolts
1 kilowatt-hour (kWh) equals 2.246943267 × 10²⁵ electronvolts (eV).
1 kWh = 2.246943267e25 eV
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilowatt-hour to electronvolt converter to paste a column from Excel.
How to Convert Kilowatt-hour to Electronvolt
- 1 kWh = 2.246943267 × 10²⁵ eV
- 1 eV = 4.45049065 × 10⁻²⁶ kWh
- Example: convert 15 kWh to eV: 15 kWh = 15 × 2.246943267 × 10²⁵ eV = 3.3704149 × 10²⁶ eV
Formula
eV = kWh × 2.246943266806 × 10²⁵
Derivation from SI units:
- 1 kWh = 1000 W × 3600 s = 3.6 × 10⁶ J
- 1 eV = e × 1 V = 1.602176634 × 10⁻¹⁹ J (exact since 2019)
- 1 kWh = 3600000 J ÷ 1.602176634 × 10⁻¹⁹ J per eV = 2.246943266806 × 10²⁵ eV
Both units are defined exactly, so the factor is exact. Kilowatt-hour definition: kilowatt-hour; Electronvolt definition: electronvolt.
Worked examples
- A reading of 10 kWh converts to 2.246943267 × 10²⁶ eV.
10 kWh × 2.246943267 × 10²⁵ = 2.246943267 × 10²⁶ eV - A value of 75 kWh is 1.68520745 × 10²⁷ eV.
75 kWh × 2.246943267 × 10²⁵ = 1.68520745 × 10²⁷ eV
Kilowatt-hour to Electronvolt conversion table
| Kilowatt-hours (kWh) | Electronvolts (eV) |
|---|---|
| 0.1 kWh | 2.246943267 × 10²⁴ eV |
| 0.5 kWh | 1.123471633 × 10²⁵ eV |
| 1 kWh | 2.246943267 × 10²⁵ eV |
| 2 kWh | 4.493886534 × 10²⁵ eV |
| 5 kWh | 1.123471633 × 10²⁶ eV |
| 10 kWh | 2.246943267 × 10²⁶ eV |
| 13.5 kWh | 3.03337341 × 10²⁶ eV |
| 20 kWh | 4.493886534 × 10²⁶ eV |
| 30 kWh | 6.7408298 × 10²⁶ eV |
| 50 kWh | 1.123471633 × 10²⁷ eV |
| 75 kWh | 1.68520745 × 10²⁷ eV |
| 100 kWh | 2.246943267 × 10²⁷ eV |
| 300 kWh | 6.7408298 × 10²⁷ eV |
| 900 kWh | 2.02224894 × 10²⁸ eV |
| 1000 kWh | 2.246943267 × 10²⁸ eV |
| 10000 kWh | 2.246943267 × 10²⁹ eV |
Where it's used
Kilowatt-hours are used for electricity bills and meters, while electronvolts appear in atomic and particle physics. Both measure energy, work and heat, so the conversion is a fixed factor.
Kilowatt-hour to other energy units
| Conversion | 1 kWh equals |
|---|---|
| kilowatt-hour to joule | 3600000 J |
| kilowatt-hour to kilojoule | 3600 kJ |
| kilowatt-hour to megajoule | 3.6 MJ |
| kilowatt-hour to calorie | 860420.6501 cal |
| kilowatt-hour to kilocalorie | 860.4206501 kcal |
| kilowatt-hour to watt-hour | 1000 Wh |
| kilowatt-hour to BTU | 3412.141633 BTU |
| kilowatt-hour to therm | 0.03412956341 thm |
| kilowatt-hour to electronvolt | 2.246943267 × 10²⁵ eV |
| kilowatt-hour to foot-pound | 2655223.737 ft·lbf |
| kilowatt-hour to erg | 36000000000000 erg |
Frequently asked questions
How many electronvolts are in 1 kilowatt-hour?
1 kWh = 2.246943267 × 10²⁵ eV.
How do I convert kilowatt-hours to electronvolts?
Multiply the value in kWh by 2.246943267 × 10²⁵. For example, 15 kWh × 2.246943267 × 10²⁵ = 3.3704149 × 10²⁶ eV.
Is the kWh 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, "kilowatt hour (kW·h)".
- 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 Kilowatt-hours to Electronvolts. Retrieved October 17, 2026, from https://scientificconverters.com/energy/kilowatt-hours-to-electronvolts/
IEEE
Scientific Converters, "Convert Kilowatt-hours to Electronvolts," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/energy/kilowatt-hours-to-electronvolts/