Watt-Hours (Wh) to Electronvolts (eV) Converter
Enter a value to instantly convert between energy units.
1 Watt-Hour = 2.2469e+22 Electronvolt
Key Formulas
Kilocalorie → Kilojoule
kJ = kcal × 4.184Kilojoule → Kilocalorie
kcal = kJ × 0.239006Kilowatt-Hour → Joule
J = kWh × 3600000Joule → Kilowatt-Hour
kWh = J × 2.77778e-7Formula
eV = Wh ÷ 4.4505e-23One watt-hour equals about 2.247×10²²² electronvolts. Since 1 Wh = 3600 J and 1 eV = 1.602×10⁻¹⁹ J, the conversion is 3600/1.602×10⁻¹⁹ = 2.247×10²² eV. This connects electrical energy to atomic-scale physics.
Source: NIST SP 811, Table B.8
Frequently Asked Questions
Real-World Examples
A physicist calculating the energy of 1 Wh in electronvolts — 2.25×10²² eV for the paper.
1 Wh = 2.247e+22 eV
A researcher analyzing 1 kWh of energy as 2.25×10²⁵ eV for quantum calculations.
1000 Wh = 2.247e+25 eV
A student converting 1 J (0.000278 Wh) of energy to eV gets 2.25×10¹⁹ eV for homework.
0.001 Wh = 22470000000000000000 eV
An engineer noting that 100 Wh equals 2.25×10²⁴ eV for the particle physics comparison.
100 Wh = 2.247e+24 eV