eV to Wh
Convert Electronvolt to Watt-hour
Convert Electronvolt to Watt-hour instantly with the tool above. The conversion factor is 4.450491e-23, meaning 1 electronvolt equals 4.450491e-23 watt-hours. Type any value and the result updates immediately — no ads, no page reloads, no clutter.
Type a number above. The result updates instantly — no buttons, no reloads.
1 Electronvolt = 4.450491e-23 watt-hours
1 Watt-hour = 2.246943e+22 electronvolts
Quick reference
Common electronvolts converted to watt-hours at a glance.
| eV | Wh |
|---|---|
| 1 | 4.450491e-23 |
| 2 | 8.900981e-23 |
| 5 | 2.225245e-22 |
| 10 | 4.450491e-22 |
| 25 | 1.112623e-21 |
| 50 | 2.225245e-21 |
| 100 | 4.450491e-21 |
| 500 | 2.225245e-20 |
| 1,000 | 4.450491e-20 |
How to convert electronvolts to watt-hours
To convert a value from electronvolts to watt-hours, multiply the electronvolt value by 4.450491e-23 watt-hours. For example, 10 electronvolts × that factor = 4.450491e-22 watt-hours.
This electronvolt to watt-hour converter runs entirely in your browser, so results appear instantly with no page reload, no advertisements and no sign-up.
Frequently asked questions
How many watt-hours are in 1 electronvolt?+
1 electronvolt is equal to 4.450491e-23 watt-hours.
How do you convert electronvolts to watt-hours?+
To convert electronvolts to watt-hours, multiply the electronvolt value by 4.450491e-23. For example, 10 electronvolts × 4.450491e-23 = 4.450491e-22 watt-hours.
What is the formula to convert electronvolts to watt-hours?+
Electronvolt → Watt-hour: value × 4.450491e-23. Equivalently, 1 electronvolt = 4.450491e-23 watt-hours.
Is this Electronvolt to Watt-hour converter free to use?+
Yes. This electronvolt to watt-hour converter is completely free, works instantly in your browser, and contains no advertisements, popups or sign-up.
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