Watt Hour to Electronvolt Converter
Energy · unit-converter
Convert Watt Hour to Electronvolt 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: Watt Hour (wh)
To: Electronvolt (ev)
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.
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.
How to convert watt hours to electronvolts
1 watt hour is equal to 2.24694327e+22 electronvolt when both are expressed in joule-equivalents:
1 wh = (3,600 J ÷ 1.602176634e-19 J) ev = 2.24694327e+22 ev
Each watt hour is defined as 3,600 J and each electronvolt as 1.602176634e-19 J in this tool, so one wh equals 3,600 ÷ 1.602176634e-19 ev = 2.24694327e+22 ev.
Let d(wh) be the numeric amount in Watt Hour (wh), and d(ev) the amount in Electronvolt (ev). Then:
d(ev) = d(wh) × (3,600 / 1.602176634e-19)
Equivalently, divide by how many wh fit into one ev (joules per ev divided by joules per wh):
d(ev) = d(wh) ÷ 4.45049065e-23
Or: electronvolt = watt hour ÷ 4.45049065e-23
Examples
Example #1: Convert 1 wh to electronvolt
1 wh = 1 wh × (3,600/1.602176634e-19) ev = 2.24694326681e+22 ev
1 wh = 1 wh ÷ 4.45049065e-23 = 2.24694326681e+22 ev
Example #2: Convert 10 wh to electronvolt
10 wh = 10 wh × (3,600/1.602176634e-19) ev = 2.24694326681e+23 ev
10 wh = 10 wh ÷ 4.45049065e-23 = 2.24694326681e+23 ev
Summary
To convert Watt Hour to Electronvolt, multiply the value in wh by the ratio of joules per wh divided by joules per ev. Equivalently: value_ev = value_wh × (3600 / 1.602176634e-19). Numerically, 1 wh equals 2.2469432668058747e+22 ev.
Relationship context
You are converting between electrical energy (watt-hours) (Watt Hours) and atomic-scale energy (electronvolts) (Electronvolts). All values are mapped through joules first. The numeric factor is 2.246943e+22.
Conversion tables
| Watt Hour (wh) | Electronvolt (ev) |
|---|---|
| 0.1 | 2.24694326681e+21 |
| 1 | 2.24694326681e+22 |
| 2 | 4.49388653361e+22 |
| 3 | 6.74082980042e+22 |
| 4 | 8.98777306722e+22 |
| 5 | 1.1234716334e+23 |
| 6 | 1.34816596008e+23 |
| 7 | 1.57286028676e+23 |
| 8 | 1.79755461344e+23 |
| 9 | 2.02224894013e+23 |
| Watt Hour (wh) | Electronvolt (ev) |
|---|---|
| 10 | 2.24694326681e+23 |
| 20 | 4.49388653361e+23 |
| 30 | 6.74082980042e+23 |
| 40 | 8.98777306722e+23 |
| 50 | 1.1234716334e+24 |
| 60 | 1.34816596008e+24 |
| 70 | 1.57286028676e+24 |
| 80 | 1.79755461344e+24 |
| 90 | 2.02224894013e+24 |
| 100 | 2.24694326681e+24 |