Convert Joule to Electronvolt Online

About Joule to Electronvolt Conversion

This converter converts Joule (J) to Electronvolt (eV). One Joule (J) equals 6241509074460763000 Electronvolt (eV).

Formula:

1 Joule (J) = 6241509074460763000 Electronvolt (eV)

Example:

1 J = 6241509074460763000 eV
2 J = 12483018148921526000 eV

Joule (J) to Electronvolt (eV) Conversion

Convert Joule to Electronvolt using the exact conversion factor. This page provides the formula, worked examples, and real-world use cases for practical understanding.

Conversion Formula

Electronvolt = Joule × 6.241509e+18

To convert Joule (J) to Electronvolt (eV), multiply the value by 6.241509e+18. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 J to eV.

  • Step 1: Write the formula: eV = J × 6.241509e+18
  • Step 2: Substitute: 1 × 6.241509e+18
  • Step 3: Result: 6.241509e+18 eV
So, 1 J = 6.241509e+18 eV.

About the Units

Joule (J)

One Joule (J) equals 6.241509e+18 Electronvolt (eV)

A widely used unit across scientific, engineering, and measurement contexts.

Electronvolt (eV)

One Electronvolt (eV) equals 1.602177e-19 Joule (J)

Common in nanotechnology, optical physics, and semiconductor design.

Where This Conversion Is Used

  • Converting values from Joule to Electronvolt for engineering or scientific workflows.
  • Used when normalizing mixed-unit datasets requiring consistent Electronvolt representation.
  • Applied when comparing different measurement systems across tools and documents.
  • Used in nanotechnology, material science, and quantum-level research.

Frequently Asked Questions

How many Electronvolt (eV) are in 1 Joule (J)?

1 J = 6.241509e+18 eV.

What is the formula for converting Joule (J) to Electronvolt (eV)?

Multiply the J value by 6.241509e+18.

Can I reverse the conversion?

Yes. 1 eV = 1.602177e-19 J.

Conclusion

By applying the conversion factor shown above, you can reliably convert Joule (J) to Electronvolt (eV) for use in scientific analysis, engineering calculations, academic work, or daily measurements.

Quick Links for Unit Converters

Convert Joule to Other Units

Joule to Kilojoule

1 J = 0.001 kJ

1 Joule (J) = 0.001 Kilojoule (kJ)

1 J equals 0.001 kJ.

Joule to Megajoule

1 J = 0.000001 MJ

1 Joule (J) = 0.000001 Megajoule (MJ)

1 J equals 0.000001 MJ.

Joule to Gigajoule

1 J = 1e-9 GJ

1 Joule (J) = 1e-9 Gigajoule (GJ)

1 J equals 1e-9 GJ.

Joule to Watt-hour

1 J = 0.0002777777777777778 Wh

1 Joule (J) = 0.0002777777777777778 Watt-hour (Wh)

1 J equals 0.0002777777777777778 Wh.

Joule to Kilowatt-hour

1 J = 2.7777777777777776e-7 kWh

1 Joule (J) = 2.7777777777777776e-7 Kilowatt-hour (kWh)

1 J equals 2.7777777777777776e-7 kWh.

Joule to Megawatt-hour

1 J = 2.7777777777777777e-10 MWh

1 Joule (J) = 2.7777777777777777e-10 Megawatt-hour (MWh)

1 J equals 2.7777777777777777e-10 MWh.

Joule to Erg

1 J = 10000000 erg

1 Joule (J) = 10000000 Ergs

1 J equals 10000000 ergs.

Joule to Calorie

1 J = 0.2390057361376673 cal

1 Joule (J) = 0.2390057361376673 Calorie (cal)

1 J equals 0.2390057361376673 cal.

Joule to Kilocalorie

1 J = 0.0002390057361376673 kcal

1 Joule (J) = 0.0002390057361376673 Kilocalorie (kcal)

1 J equals 0.0002390057361376673 kcal.

Joule to British Thermal Unit

1 J = 0.0009478133944988911 BTU

1 Joule (J) = 0.0009478133944988911 British Thermal Unit (BTU)

1 J equals 0.0009478133944988911 BTU.

Joule to Foot-pound force

1 J = 0.7375621494575464 ft_lbf

1 Joule (J) = 0.7375621494575464 Foot-pound force (ft⋅lbf)

1 J equals 0.7375621494575464 ft_lbf.

Joule to Horsepower-hour

1 J = 3.7250648813175704e-7 hp_h

1 Joule (J) = 3.7250648813175704e-7 Horsepower-hour (hp⋅h)

1 J equals 3.7250648813175704e-7 hp_h.

Joule to Therm

1 J = 9.478133944988911e-9 therm_us

1 Joule (J) = 9.478133944988911e-9 Therm (US)

1 J equals 9.478133944988911e-9 therm_us.

Joule to Electronvolt

1 J = 6241509074460763000 eV

1 Joule (J) = 6241509074460763000 Electronvolts (eV)

1 J equals 6241509074460763000 eVs.

Joule to Kiloelectronvolt

1 J = 6241509074460763 keV

1 Joule (J) = 6241509074460763 Kiloelectronvolts (keV)

1 J equals 6241509074460763 keVs.

Joule to Megaelectronvolt

1 J = 6241509074460.763 MeV

1 Joule (J) = 6241509074460.763 Megaelectronvolts (MeV)

1 J equals 6241509074460.763 MeVs.

Joule to Gigaelectronvolt

1 J = 6241509074.460762 GeV

1 Joule (J) = 6241509074.460762 Gigaelectronvolts (GeV)

1 J equals 6241509074.460762 GeVs.

Joule to Tonne of Oil Equivalent

1 J = 2.3884589662749594e-11 toe

1 Joule (J) = 2.3884589662749594e-11 Tonne of Oil Equivalent (toe)

1 J equals 2.3884589662749594e-11 toe.

Joule to Tonne of Coal Equivalent

1 J = 3.412084237535656e-11 tce

1 Joule (J) = 3.412084237535656e-11 Tonne of Coal Equivalent (tce)

1 J equals 3.412084237535656e-11 tce.

Joule to Hartree

1 J = 229371227839632480 hartree

1 Joule (J) = 229371227839632480 Hartrees

1 J equals 229371227839632480 hartrees.

Convert Electronvolt to Other Units

Electronvolt to Joule

1 eV = 1.602176634e-19 J

1 Electronvolt (eV) = 1.602176634e-19 Joule (J)

1 eV equals 1.602176634e-19 J.

Electronvolt to Kilojoule

1 eV = 1.6021766339999998e-22 kJ

1 Electronvolt (eV) = 1.6021766339999998e-22 Kilojoule (kJ)

1 eV equals 1.6021766339999998e-22 kJ.

Electronvolt to Megajoule

1 eV = 1.602176634e-25 MJ

1 Electronvolt (eV) = 1.602176634e-25 Megajoule (MJ)

1 eV equals 1.602176634e-25 MJ.

Electronvolt to Gigajoule

1 eV = 1.602176634e-28 GJ

1 Electronvolt (eV) = 1.602176634e-28 Gigajoule (GJ)

1 eV equals 1.602176634e-28 GJ.

Electronvolt to Watt-hour

1 eV = 4.4504906499999996e-23 Wh

1 Electronvolt (eV) = 4.4504906499999996e-23 Watt-hour (Wh)

1 eV equals 4.4504906499999996e-23 Wh.

Electronvolt to Kilowatt-hour

1 eV = 4.45049065e-26 kWh

1 Electronvolt (eV) = 4.45049065e-26 Kilowatt-hour (kWh)

1 eV equals 4.45049065e-26 kWh.

Electronvolt to Megawatt-hour

1 eV = 4.4504906499999997e-29 MWh

1 Electronvolt (eV) = 4.4504906499999997e-29 Megawatt-hour (MWh)

1 eV equals 4.4504906499999997e-29 MWh.

Electronvolt to Erg

1 eV = 1.602176634e-12 erg

1 Electronvolt (eV) = 1.602176634e-12 Erg

1 eV equals 1.602176634e-12 erg.

Electronvolt to Calorie

1 eV = 3.829294058317399e-20 cal

1 Electronvolt (eV) = 3.829294058317399e-20 Calorie (cal)

1 eV equals 3.829294058317399e-20 cal.

Electronvolt to Kilocalorie

1 eV = 3.8292940583173993e-23 kcal

1 Electronvolt (eV) = 3.8292940583173993e-23 Kilocalorie (kcal)

1 eV equals 3.8292940583173993e-23 kcal.

Electronvolt to British Thermal Unit

1 eV = 1.5185644740583473e-22 BTU

1 Electronvolt (eV) = 1.5185644740583473e-22 British Thermal Unit (BTU)

1 eV equals 1.5185644740583473e-22 BTU.

Electronvolt to Foot-pound force

1 eV = 1.1817048419836966e-19 ft_lbf

1 Electronvolt (eV) = 1.1817048419836966e-19 Foot-pound force (ft⋅lbf)

1 eV equals 1.1817048419836966e-19 ft_lbf.

Electronvolt to Horsepower-hour

1 eV = 5.968211912980993e-26 hp_h

1 Electronvolt (eV) = 5.968211912980993e-26 Horsepower-hour (hp⋅h)

1 eV equals 5.968211912980993e-26 hp_h.

Electronvolt to Therm

1 eV = 1.5185644740583472e-27 therm_us

1 Electronvolt (eV) = 1.5185644740583472e-27 Therm (US)

1 eV equals 1.5185644740583472e-27 therm_us.

Electronvolt to Kiloelectronvolt

1 eV = 0.001 keV

1 Electronvolt (eV) = 0.001 Kiloelectronvolt (keV)

1 eV equals 0.001 keV.

Electronvolt to Megaelectronvolt

1 eV = 0.000001 MeV

1 Electronvolt (eV) = 0.000001 Megaelectronvolt (MeV)

1 eV equals 0.000001 MeV.

Electronvolt to Gigaelectronvolt

1 eV = 9.999999999999999e-10 GeV

1 Electronvolt (eV) = 9.999999999999999e-10 Gigaelectronvolt (GeV)

1 eV equals 9.999999999999999e-10 GeV.

Electronvolt to Tonne of Oil Equivalent

1 eV = 3.826733147033534e-30 toe

1 Electronvolt (eV) = 3.826733147033534e-30 Tonne of Oil Equivalent (toe)

1 eV equals 3.826733147033534e-30 toe.

Electronvolt to Tonne of Coal Equivalent

1 eV = 5.466761638619334e-30 tce

1 Electronvolt (eV) = 5.466761638619334e-30 Tonne of Coal Equivalent (tce)

1 eV equals 5.466761638619334e-30 tce.

Electronvolt to Hartree

1 eV = 0.03674932217565494 hartree

1 Electronvolt (eV) = 0.03674932217565494 Hartree

1 eV equals 0.03674932217565494 hartree.