1 electronvolt (eV) = 4.450491e-23 watt-hours (Wh). To convert, divide by 2.246943e+22: Wh = eV ÷ 2.246943e+22. For example, 5e+21 eV = 0.2225245325 Wh.
Wh = eV ÷ 2.246943e+22
Electronvolts to watt-hours table
| Electronvolts (eV) | Watt-hours (Wh) |
|---|---|
| 1e+21 | 0.0445049065 |
| 2e+21 | 0.089009813 |
| 3e+21 | 0.1335147195 |
| 4e+21 | 0.178019626 |
| 5e+21 | 0.2225245325 |
| 1e+22 | 0.445049065 |
| 2e+22 | 0.89009813 |
| 2.5e+22 | 1.112622662 |
| 5e+22 | 2.225245325 |
| 1e+23 | 4.45049065 |
| 2.5e+23 | 11.12622662 |
| 5e+23 | 22.25245325 |
| 1e+24 | 44.5049065 |
The two units
Electronvolt (eV). The energy an electron gains across one volt; exactly 1.602176634 × 10⁻¹⁹ joules since 2019.
Watt-hour (Wh). One watt for one hour: 3,600 joules. Battery capacities are given in Wh.
Convert electronvolts to other units
- Electronvolts to joules — 1 eV = 1.602177e-19 J
- Electronvolts to kilojoules — 1 eV = 1.602177e-22 kJ
- Electronvolts to calories — 1 eV = 3.829294e-20 cal
- Electronvolts to kilocalories — 1 eV = 3.829294e-23 kcal
- Electronvolts to kilowatt-hours — 1 eV = 4.450491e-26 kWh
- Electronvolts to British thermal units — 1 eV = 1.51857e-22 BTU
Convert other units to watt-hours
Questions people ask
- How many watt-hours are in a electronvolt?
- 4.450491e-23.
- How do you convert electronvolts to watt-hours?
- Wh = eV ÷ 2.246943e+22. It is the same as dividing by 2.246943e+22.
- How do you convert watt-hours back to electronvolts?
- eV = Wh × 2.246943e+22. See watt-hours to electronvolts.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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