Joules to Electronvolts Converter
1 joule (J) equals 6.2415091 × 1018 electronvolts (eV).
Quick answer
1 joule = 6.2415091 × 1018 electronvolts 1 electronvolt = 1.6021766 × 10-19 joules
Formula: eV = J × 6.2415091 × 1018
From
Joule (J) Kilocalorie (kcal) Kilowatt-hour (kWh) British thermal unit (BTU) Calorie (cal) Kilojoule (kJ) Calorie (food) (Cal) Electronvolt (eV) Watt-hour (Wh) Foot-pound (ft⋅lbf) Megajoule (MJ) Therm (thm) Megawatt-hour (MWh) Gigajoule (GJ) Erg (erg) Million BTU (MMBtu) Barrel of oil equivalent (BOE) Gigawatt-hour (GWh) Megaelectronvolt (MeV) Terawatt-hour (TWh) Ton of TNT (t TNT) Gigaelectronvolt (GeV) Kiloelectronvolt (keV) Tonne of oil equivalent (toe) Kiloton of TNT (kt) Megaton of TNT (Mt) Millijoule (mJ) Terajoule (TJ) International Table calorie (cal_IT) Exajoule (EJ) Inch-pound (in⋅lbf) Petajoule (PJ) Teraelectronvolt (TeV) Thousand BTU (MBtu) Cubic foot of natural gas Dekatherm (Dth) Gallon of gasoline equivalent (GGE) Gigacalorie (Gcal) Horsepower-hour (hp⋅h) Liter-atmosphere (L⋅atm) Microjoule (µJ) Million tonnes of oil equivalent (Mtoe) Quad (quad) EC therm (thm (EC)) Cubic meter of natural gas Hartree (Eh) Kilojoule per mole (kJ/mol) Tonne of coal equivalent (tce) Zettajoule (ZJ) Kilocalorie per mole (kcal/mol) Kilotonne of oil equivalent (ktoe) Liter of gasoline Megacalorie (Mcal) Millielectronvolt (meV) Milliwatt-hour (mWh) Nanojoule (nJ) Petawatt-hour (PWh) Wavenumber (energy) (cm⁻¹) Planck energy (EP) Gigaton of TNT (Gt) Gram of TNT (g TNT) Kilogram of TNT (kg TNT) Kilogram-force meter (kgf⋅m) Million barrels of oil equivalent (MMBOE) Petaelectronvolt (PeV) Rydberg (Ry) Thousand barrels of oil equivalent (kBOE) AA battery Hiroshima bomb Banana (food energy) Exaelectronvolt (EeV) Gallon of diesel equivalent (DGE) Kelvin (energy) (K·k_B) Smartphone battery Thermochemical BTU (BTU_th) 15 °C calorie (cal₁₅) 59 °F BTU (BTU₅₉) Big Mac (food energy) Celsius heat unit (CHU) Q unit (Q) Tsar Bomba Foe (foe) Foot-poundal (ft⋅pdl) Hertz (energy) (h·Hz) Inch-ounce (in⋅ozf) Lightning bolt Metric horsepower-hour (PS⋅h) Solar luminosity second (L☉·s) Thermie (th) 20 °C calorie (cal₂₀) 39 °F BTU (BTU₃₉) 60 °F BTU (BTU₆₀) US annual energy consumption Cubic centimeter-atmosphere (cm³⋅atm) Cubic foot-atmosphere (ft³⋅atm) Cubic foot-psi (ft³⋅psi) Mean BTU (BTU_mean) Mean calorie (cal_mean) World annual energy consumption
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To
6.2415091 × 1018
Joule (J) Kilocalorie (kcal) Kilowatt-hour (kWh) British thermal unit (BTU) Calorie (cal) Kilojoule (kJ) Calorie (food) (Cal) Electronvolt (eV) Watt-hour (Wh) Foot-pound (ft⋅lbf) Megajoule (MJ) Therm (thm) Megawatt-hour (MWh) Gigajoule (GJ) Erg (erg) Million BTU (MMBtu) Barrel of oil equivalent (BOE) Gigawatt-hour (GWh) Megaelectronvolt (MeV) Terawatt-hour (TWh) Ton of TNT (t TNT) Gigaelectronvolt (GeV) Kiloelectronvolt (keV) Tonne of oil equivalent (toe) Kiloton of TNT (kt) Megaton of TNT (Mt) Millijoule (mJ) Terajoule (TJ) International Table calorie (cal_IT) Exajoule (EJ) Inch-pound (in⋅lbf) Petajoule (PJ) Teraelectronvolt (TeV) Thousand BTU (MBtu) Cubic foot of natural gas Dekatherm (Dth) Gallon of gasoline equivalent (GGE) Gigacalorie (Gcal) Horsepower-hour (hp⋅h) Liter-atmosphere (L⋅atm) Microjoule (µJ) Million tonnes of oil equivalent (Mtoe) Quad (quad) EC therm (thm (EC)) Cubic meter of natural gas Hartree (Eh) Kilojoule per mole (kJ/mol) Tonne of coal equivalent (tce) Zettajoule (ZJ) Kilocalorie per mole (kcal/mol) Kilotonne of oil equivalent (ktoe) Liter of gasoline Megacalorie (Mcal) Millielectronvolt (meV) Milliwatt-hour (mWh) Nanojoule (nJ) Petawatt-hour (PWh) Wavenumber (energy) (cm⁻¹) Planck energy (EP) Gigaton of TNT (Gt) Gram of TNT (g TNT) Kilogram of TNT (kg TNT) Kilogram-force meter (kgf⋅m) Million barrels of oil equivalent (MMBOE) Petaelectronvolt (PeV) Rydberg (Ry) Thousand barrels of oil equivalent (kBOE) AA battery Hiroshima bomb Banana (food energy) Exaelectronvolt (EeV) Gallon of diesel equivalent (DGE) Kelvin (energy) (K·k_B) Smartphone battery Thermochemical BTU (BTU_th) 15 °C calorie (cal₁₅) 59 °F BTU (BTU₅₉) Big Mac (food energy) Celsius heat unit (CHU) Q unit (Q) Tsar Bomba Foe (foe) Foot-poundal (ft⋅pdl) Hertz (energy) (h·Hz) Inch-ounce (in⋅ozf) Lightning bolt Metric horsepower-hour (PS⋅h) Solar luminosity second (L☉·s) Thermie (th) 20 °C calorie (cal₂₀) 39 °F BTU (BTU₃₉) 60 °F BTU (BTU₆₀) US annual energy consumption Cubic centimeter-atmosphere (cm³⋅atm) Cubic foot-atmosphere (ft³⋅atm) Cubic foot-psi (ft³⋅psi) Mean BTU (BTU_mean) Mean calorie (cal_mean) World annual energy consumption
1 joule = 6.2415091 × 1018 electronvolts
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How to convert joules to electronvolts
eV = J × 6.2415091 × 1018
To convert joules to electronvolts, multiply the number of joules by 6.2415091 × 1018 .
Example: 18 J to eV
Start with the value in joules: 18 J.
Multiply by 6.2415091 × 1018 : 18 × 6.2415091 × 1018 = 1.1234716 × 1020 .
Result: 18 joules = 1.1234716 × 1020 electronvolts .
Going the other way, 1 electronvolt = 1.6021766 × 10-19 joules, so to convert electronvolts back to joules you divide by the same number. See electronvolts to joules .
Joules to electronvolts conversion table
Joules (J) Electronvolts (eV)
0.25 J 1.5603773 × 1018 eV 0.5 J 3.1207545 × 1018 eV 0.75 J 4.6811318 × 1018 eV 1 J 6.2415091 × 1018 eV 1.5 J 9.3622636 × 1018 eV 2 J 1.2483018 × 1019 eV 2.5 J 1.5603773 × 1019 eV 3 J 1.8724527 × 1019 eV 4 J 2.4966036 × 1019 eV 5 J 3.1207545 × 1019 eV 6 J 3.7449054 × 1019 eV 7 J 4.3690564 × 1019 eV 8 J 4.9932073 × 1019 eV 9 J 5.6173582 × 1019 eV 10 J 6.2415091 × 1019 eV 11 J 6.86566 × 1019 eV 12 J 7.4898109 × 1019 eV 13 J 8.1139618 × 1019 eV 14 J 8.7381127 × 1019 eV 15 J 9.3622636 × 1019 eV 16 J 9.9864145 × 1019 eV 17 J 1.0610565 × 1020 eV 18 J 1.1234716 × 1020 eV 19 J 1.1858867 × 1020 eV 20 J 1.2483018 × 1020 eV 21 J 1.3107169 × 1020 eV 22 J 1.373132 × 1020 eV 23 J 1.4355471 × 1020 eV 24 J 1.4979622 × 1020 eV 25 J 1.5603773 × 1020 eV 26 J 1.6227924 × 1020 eV 27 J 1.6852075 × 1020 eV 28 J 1.7476225 × 1020 eV 29 J 1.8100376 × 1020 eV 30 J 1.8724527 × 1020 eV 31 J 1.9348678 × 1020 eV 32 J 1.9972829 × 1020 eV 33 J 2.059698 × 1020 eV 34 J 2.1221131 × 1020 eV 35 J 2.1845282 × 1020 eV
More J to eV values
What is an electronvolt?
The electronvolt is the energy an electron gains when accelerated through one volt, exactly 1.602176634 × 10⁻¹⁹ joules.
More about electronvolts →
Convert joules to other units
Convert other units to electronvolts
Frequently asked questions
How many electronvolts are in a joule? One joule is 6.2415091e18 electronvolts.
How many joules are in an electronvolt? One electronvolt is 1.6021766e-19 joules.
What is the formula to convert joules to electronvolts? eV = J × 6.2415091 × 10^18.