Convert electronvolts to watt-hours
1 eV = 0.0000000000000000000000445049065 Wh — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
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Show this value in all 39 energy & work units
- Petajoules PJ 1.602176634e-34
- Terajoules TJ 1.602176634e-31
- Gigajoules GJ 1.602176634e-28
- Megajoules MJ 1.602176634e-25
- Kilojoules kJ 1.602176634e-22
- Joules J 1.602176634e-19
- Millijoules mJ 1.602176634e-16
- Microjoules µJ 1.602176634e-13
- Nanojoules nJ 1.602176634e-10
- Watt-hours Wh 4.45049065e-23
- Kilowatt-hours kWh 4.45049065e-26
- Megawatt-hours MWh 4.45049065e-29
- Gigawatt-hours GWh 4.45049065e-32
- Terawatt-hours TWh 4.45049065e-35
- Calorie (thermochemical)s cal 3.82929405832e-20
- Kilocalories kcal 3.82929405832e-23
- Calorie (IT)s cal (IT) 3.82673314703e-20
- Kilocalorie (IT)s kcal (IT) 3.82673314703e-23
- British thermal units BTU 1.51857044347e-22
- BTU (thermochemical)s BTU (th) 1.5195870764e-22
- Million BTUs MMBTU 1.51857044347e-28
- Therm (US)s thm 1.51893302832e-27
- Therm (EC)s thm (EC) 1.51857023134e-27
- Electronvolts eV 1
- Kiloelectronvolts keV 0.001
- Megaelectronvolts MeV 0.000 001
- Gigaelectronvolts GeV 1e-9
- Teraelectronvolts TeV 1e-12
- Ergs erg 1.602176634e-12
- Foot-pounds ft·lbf 1.18170484169e-19
- Inch-pounds in·lbf 1.41804581003e-18
- Foot-poundals ft·pdl 3.80202289561e-18
- Horsepower-hours hp·h 5.96820627119e-26
- Tonne of TNTs t TNT 3.82929405832e-29
- Kiloton of TNTs kt TNT 3.82929405832e-32
- Megaton of TNTs Mt TNT 3.82929405832e-35
- Hartrees Eₕ 0.036 749 322 175 7
- Rydbergs Ry 0.073 498 644 351 3
- Quads quad 1.51857044347e-37
Every row is Electronvolt (eV) converted through the joule, in exact rational arithmetic.
How to convert electronvolts to watt-hours
Multiply the number of electronvolts by 0.0000000000000000000000445049065 to get watt-hours.
The exact factor is 0.0000000000000000000000445049065 — as a fraction, 89009813/2000000000000000000000000000000.
Electronvolt: Exactly 1.602 176 634 × 10⁻¹⁹ J since the 2019 SI redefinition.
Electronvolt to Watt-hour conversion table
| Electronvolts (eV) | Watt-hours (Wh) |
|---|---|
| 1 eV | 4.4504907e-23 |
| 2 eV | 8.9009813e-23 |
| 3 eV | 1.3351472e-22 |
| 5 eV | 2.2252453e-22 |
| 10 eV | 4.4504907e-22 |
| 20 eV | 8.9009813e-22 |
| 25 eV | 1.1126227e-21 |
| 50 eV | 2.2252453e-21 |
| 100 eV | 4.4504907e-21 |
| 250 eV | 1.1126227e-20 |
| 500 eV | 2.2252453e-20 |
| 1000 eV | 4.4504907e-20 |
Watt-hour to Electronvolt conversion table
| Watt-hours (Wh) | Electronvolts (eV) |
|---|---|
| 1 Wh | 2.2469433e+22 |
| 2 Wh | 4.4938865e+22 |
| 3 Wh | 6.7408298e+22 |
| 5 Wh | 1.1234716e+23 |
| 10 Wh | 2.2469433e+23 |
| 20 Wh | 4.4938865e+23 |
| 25 Wh | 5.6173582e+23 |
| 50 Wh | 1.1234716e+24 |
| 100 Wh | 2.2469433e+24 |
| 250 Wh | 5.6173582e+24 |
| 500 Wh | 1.1234716e+25 |
| 1000 Wh | 2.2469433e+25 |
Frequently asked
How many watt-hours are in a electronvolt?
One electronvolt equals 4.45049065e-23 watt-hours (eV → Wh). That figure is exact, not rounded.
How do you convert electronvolts to watt-hours?
Multiply the number of electronvolts by 0.0000000000000000000000445049065 to get watt-hours.
What is 1 Wh in electronvolts?
One watt-hour is 2.246943267e+22 electronvolts.
What is 10 eV in Wh?
10 eV = 4.4504907e-22 Wh.
What exactly is a electronvolt?
Exactly 1.602 176 634 × 10⁻¹⁹ J since the 2019 SI redefinition.