Electronvolts to Watt-hours Converter
Convert electronvolts (eV) to watt-hours (Wh) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Result
- Watt-hours
- 4.450491e-23 Wh
How to use the electronvolts to watt-hours converter
- Enter the electronvolts (eV).
- The results update as you type, or press Calculate.
- Read the watt-hours first, then the supporting figures below it.
Formula
Watt-hours = electronvolts × 4.450491e-23
Worked example
For example, with these inputs:
- Electronvolts (eV): 1
the calculator returns:
- Watt-hours: 4.450491e-23 Wh
Electronvolts to Watt-hours table
| Electronvolts | Watt-hours |
|---|---|
| 1 eV | 4.450491e-23 Wh |
| 2 eV | 8.900981e-23 Wh |
| 5 eV | 2.225245e-22 Wh |
| 10 eV | 4.450491e-22 Wh |
| 20 eV | 8.900981e-22 Wh |
| 25 eV | 1.112623e-21 Wh |
| 50 eV | 2.225245e-21 Wh |
| 100 eV | 4.450491e-21 Wh |
| 250 eV | 1.112623e-20 Wh |
| 500 eV | 2.225245e-20 Wh |
| 1,000 eV | 4.450491e-20 Wh |
About this conversion
Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Frequently asked questions
How many watt-hours are in one electronvolt?
1 eV = 4.450491e-23 Wh.
How do I convert eV to Wh?
Watt-hours = electronvolts × 4.450491e-23.