Convert Watt Hour to Electronvolt
Use this free converter to change watt hours (Wh) into electronvolts (eV). Watt hour and electronvolt both measure energy. As a quick reference, 1 Wh equals 2.2469e+22 eV, and 1 eV equals 4.4505e-23 Wh.
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Electronvolt (eV)
2.2469e+22
1 Wh = 2.2469e+22 eV
Energy conversion table
| Watt Hour | Electronvolt |
|---|---|
| 0.01 | 2.2469e+20 |
| 0.1 | 2.2469e+21 |
| 0.5 | 1.1235e+22 |
| 1 | 2.2469e+22 |
| 2 | 4.4939e+22 |
| 3 | 6.7408e+22 |
| 5 | 1.1235e+23 |
| 10 | 2.2469e+23 |
| 20 | 4.4939e+23 |
| 25 | 5.6174e+23 |
| 50 | 1.1235e+24 |
| 100 | 2.2469e+24 |
| 1,000 | 2.2469e+25 |
How to convert Watt Hour to Electronvolt
Multiply the watt hour value by 2.2469e+22 to get electronvolts.
- Enter the number of watt hours you want to convert.
- The converter instantly shows the equivalent value in electronvolts.
- Worked example: 15 Wh × 2.2469e+22 = 3.3704e+23 eV.
- Use the swap button to reverse the conversion (electronvolt to watt hour).
About these units
Watt Hour (Wh)
- Definition
- A watt-hour (Wh) is the energy of one watt sustained for one hour, equal to 3,600 joules.
- History
- It arose with the electricity industry as a practical billing unit.
- Current use
- Watt-hours rate batteries and small energy stores.
Electronvolt (eV)
- Definition
- An electronvolt (eV) is the energy gained by an electron moving through a one-volt potential, a tiny amount of energy.
- History
- It became standard in atomic and particle physics in the 20th century.
- Current use
- Electronvolts measure energies of particles, photons, and chemical bonds.
Frequently asked questions
How many electronvolts are in a watt hour?
There are 2.2469e+22 eV in 1 Wh. To convert, multiply the number of watt hours by 2.2469e+22.
How do I convert watt hours to electronvolts?
Multiply the watt hour value by 2.2469e+22 to get electronvolts. For example, 10 Wh = 2.2469e+23 eV.
Is this watt hour-to-electronvolt converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Watt Hour to other energy units
| Unit | 1 Watt Hour equals |
|---|---|
| Joule (J) | 3600 J |
| Kilojoule (kJ) | 3.6 kJ |
| Calorie (cal) | 860.42065 cal |
| Kilocalorie (kcal) | 0.86042065 kcal |
| Kilowatt Hour (kWh) | 0.001 kWh |
| Electronvolt (eV) | 2.2469e+22 eV |
| British Thermal Unit (BTU) | 3.4121416 BTU |
| Foot-Pound (ft·lb) | 2655.2237 ft·lb |