Convert electron-volt to watt-hour
Please provide values below to convert electron-volt [eV] to watt-hour [W*h], or Convert watt-hour to electron-volt.
1 eV = 4.4505e-23 W*h. To convert electron-volt to watt-hour, multiply the value by 4.4505e-23; to go the other way, divide by it (1 W*h = 2.2469e+22 eV). Both units measure energy and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 eV = 4.4505e-23 W*h
- 1 W*h = 2.2469e+22 eV
- 10 eV = 4.4505e-22 W*h
- 100 eV = 4.4505e-21 W*h
How to Convert Electron-Volt to Watt-Hour
1 eV = 4.45049065e-23 W*h
Example: convert 15 eV to W*h:
15 eV = 15 × 4.45049065e-23 W*h = 6.675735975e-22 W*h
Electron-Volt to Watt-Hour Conversion Table
| electron-volt | watt-hour |
|---|---|
| 1 eV | 4.4505e-23 W*h |
| 2 eV | 8.9010e-23 W*h |
| 3 eV | 1.3351e-22 W*h |
| 5 eV | 2.2252e-22 W*h |
| 10 eV | 4.4505e-22 W*h |
| 20 eV | 8.9010e-22 W*h |
| 50 eV | 2.2252e-21 W*h |
| 100 eV | 4.4505e-21 W*h |
| 500 eV | 2.2252e-20 W*h |
| 1000 eV | 4.4505e-20 W*h |
Electron-Volt
An electron-volt (eV) is a unit of energy equal to the amount of kinetic energy gained or lost by an electron when it is accelerated through an electric potential difference of one volt.
History/Origin
The electron-volt was introduced in the early 20th century as a convenient unit for expressing atomic and subatomic energies, especially in quantum physics and particle physics, replacing larger units like the joule for small-scale energies.
Current Use
The electron-volt is widely used in physics and chemistry to quantify energies at the atomic and subatomic levels, such as in spectroscopy, particle physics, and quantum mechanics, due to its convenience in expressing small energy values.
Watt-Hour
A watt-hour (W·h) is a unit of energy equal to the amount of energy transferred or used when one watt of power is sustained for one hour.
History/Origin
The watt-hour was established as a practical unit of energy measurement with the adoption of the International System of Units (SI) and has been used in electrical and energy industries to quantify energy consumption and storage since the 20th century.
Current Use
Watt-hours are commonly used to measure electrical energy consumption in household appliances, batteries, and energy storage systems, providing a convenient unit for billing, capacity ratings, and energy management.
Frequently Asked Questions
What is 1 electron-volt in watt-hour?
1 electron-volt (eV) = 4.4505e-23 watt-hour (W*h).
How do you convert electron-volt to watt-hour?
Multiply the electron-volt value by 4.4505e-23. For example, 25 eV × 4.4505e-23 = 1.1126e-21 W*h.
What is 10 electron-volt in watt-hour?
10 eV = 4.4505e-22 W*h.
Which unit is larger, the electron-volt or the watt-hour?
The watt-hour is the larger unit: 1 eV equals only 4.4505e-23 W*h.