Edit either value. Decimals and scientific notation supported.
1
Wh
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JouleJ
KilojoulekJ
MegajouleMJ
Watt-hourWh
Kilowatt-hourkWh
Thermochemical caloriecal
Kilocalorie (food Calorie)kcal
BTU (international table)BTU (IT)
ElectronvolteV
No units found. Try a name or symbol.
2.246943267e+22
eV
esc
JouleJ
KilojoulekJ
MegajouleMJ
Watt-hourWh
Kilowatt-hourkWh
Thermochemical caloriecal
Kilocalorie (food Calorie)kcal
BTU (international table)BTU (IT)
ElectronvolteV
No units found. Try a name or symbol.
CONVERSION
1 Wh ≈ 2.246943267e+22 eV
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAeV = Wh × 2.24694326680587e+22
FORMULA & EXAMPLES
How to convert Watt-hours to electronvolts
eV = Wh × 2.24694326680587e+22
Multiply the Wh reading by 2.24694326680587e+22.
Worked examples
1 Wh ≈ 2.246943267e+22 eV
1 × 2.24694326680587e+22 ≈ 2.246943267e+22
1000 Wh ≈ 2.246943267e+25 eV
1000 × 2.24694326680587e+22 ≈ 2.246943267e+25
Frequently asked questions
Is a watt-hour the same quantity as a watt?
No. A watt-hour measures energy; a watt measures power. One watt-hour is the energy transferred at one watt for one hour, equal to 3,600 joules.
Watt-hours to electronvolts table
Fixed reference · Watt-hour to Electronvolt
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Watt-hour (Wh)
Electronvolt (eV)
0
0
0.1
2.246943267e+21
0.5
1.123471633e+22
1
2.246943267e+22
2
4.493886534e+22
5
1.123471633e+23
10
2.246943267e+23
25
5.617358167e+23
50
1.123471633e+24
100
2.246943267e+24
1000
2.246943267e+25
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.