Electronvolt to Watt Hour Converter
Energy · unit-converter
Convert Electronvolt to Watt Hour with fixed input and output units, a step-by-step formula line, and reference tables. Factors are joule-based; food energy uses thermochemical calories. The full Energy Converter also includes MMBtu, toe, thermal kWh, and MeV/GeV.
Calculator
From: Electronvolt (ev)
To: Watt Hour (wh)
About Electronvolt
The electronvolt is the energy change of one elementary charge across 1 V: 1 eV ≈ 1.602176634×10⁻¹⁹ J (exact by SI definition). Used in particle physics and chemistry.
About Watt Hour
One watt-hour is 3,600 J—the energy from 1 W for one hour. Common for small batteries and device ratings.
How to convert electronvolts to watt hours
1 electronvolt is equal to 4.45049065e-23 watt hour when both are expressed in joule-equivalents:
1 ev = (1.602176634e-19 J ÷ 3,600 J) wh = 4.45049065e-23 wh
Each electronvolt is defined as 1.602176634e-19 J and each watt hour as 3,600 J in this tool, so one ev equals 1.602176634e-19 ÷ 3,600 wh = 4.45049065e-23 wh.
Let d(ev) be the numeric amount in Electronvolt (ev), and d(wh) the amount in Watt Hour (wh). Then:
d(wh) = d(ev) × (1.602176634e-19 / 3,600)
Equivalently, divide by how many ev fit into one wh (joules per wh divided by joules per ev):
d(wh) = d(ev) ÷ 2.24694327e+22
Or: watt hour = electronvolt ÷ 2.24694327e+22
Examples
Example #1: Convert 1 ev to watt hour
1 ev = 1 ev × (1.602176634e-19/3,600) wh = 0 wh
1 ev = 1 ev ÷ 2.24694327e+22 = 0 wh
Example #2: Convert 10 ev to watt hour
10 ev = 10 ev × (1.602176634e-19/3,600) wh = 0 wh
10 ev = 10 ev ÷ 2.24694327e+22 = 0 wh
Summary
To convert Electronvolt to Watt Hour, multiply the value in ev by the ratio of joules per ev divided by joules per wh. Equivalently: value_wh = value_ev × (1.602176634e-19 / 3600). Numerically, 1 ev equals 4.4504906499999996e-23 wh.
Relationship context
You are converting between atomic-scale energy (electronvolts) (Electronvolts) and electrical energy (watt-hours) (Watt Hours). All values are mapped through joules first. The numeric factor is 4.450491e-23.
Conversion tables
| Electronvolt (ev) | Watt Hour (wh) |
|---|---|
| 0.1 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| Electronvolt (ev) | Watt Hour (wh) |
|---|---|
| 10 | 0 |
| 20 | 0 |
| 30 | 0 |
| 40 | 0 |
| 50 | 0 |
| 60 | 0 |
| 70 | 0 |
| 80 | 0 |
| 90 | 0 |
| 100 | 0 |