Convert electronvolts to kilojoules
1 eV = 0.0000000000000000000001602176634 kJ — 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 kilojoules
Multiply the number of electronvolts by 0.0000000000000000000001602176634 to get kilojoules.
The exact factor is 0.0000000000000000000001602176634 — as a fraction, 801088317/5000000000000000000000000000000.
Electronvolt: Exactly 1.602 176 634 × 10⁻¹⁹ J since the 2019 SI redefinition.
Electronvolt to Kilojoule conversion table
| Electronvolts (eV) | Kilojoules (kJ) |
|---|---|
| 1 eV | 1.6021766e-22 |
| 2 eV | 3.2043533e-22 |
| 3 eV | 4.8065299e-22 |
| 5 eV | 8.0108832e-22 |
| 10 eV | 1.6021766e-21 |
| 20 eV | 3.2043533e-21 |
| 25 eV | 4.0054416e-21 |
| 50 eV | 8.0108832e-21 |
| 100 eV | 1.6021766e-20 |
| 250 eV | 4.0054416e-20 |
| 500 eV | 8.0108832e-20 |
| 1000 eV | 1.6021766e-19 |
Kilojoule to Electronvolt conversion table
| Kilojoules (kJ) | Electronvolts (eV) |
|---|---|
| 1 kJ | 6.2415091e+21 |
| 2 kJ | 1.2483018e+22 |
| 3 kJ | 1.8724527e+22 |
| 5 kJ | 3.1207545e+22 |
| 10 kJ | 6.2415091e+22 |
| 20 kJ | 1.2483018e+23 |
| 25 kJ | 1.5603773e+23 |
| 50 kJ | 3.1207545e+23 |
| 100 kJ | 6.2415091e+23 |
| 250 kJ | 1.5603773e+24 |
| 500 kJ | 3.1207545e+24 |
| 1000 kJ | 6.2415091e+24 |
Frequently asked
How many kilojoules are in a electronvolt?
One electronvolt equals 1.602176634e-22 kilojoules (eV → kJ). That figure is exact, not rounded.
How do you convert electronvolts to kilojoules?
Multiply the number of electronvolts by 0.0000000000000000000001602176634 to get kilojoules.
What is 1 kJ in electronvolts?
One kilojoule is 6.241509074e+21 electronvolts.
What is 10 eV in kJ?
10 eV = 1.6021766e-21 kJ.
What exactly is a electronvolt?
Exactly 1.602 176 634 × 10⁻¹⁹ J since the 2019 SI redefinition.