Convert Hartree to Electronvolt Online

About Hartree to Electronvolt Conversion

This converter converts Hartree to Electronvolt (eV). One Hartree equals 27.211386245988034 Electronvolt (eV).

Formula:

1 Hartree = 27.211386245988034 Electronvolt (eV)

Example:

1  = 27.211386245988034 eV
2  = 54.42277249197607 eV

Hartree to Electronvolt (eV) Conversion

Convert Hartree 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 = Hartree × 27.211386

To convert Hartree to Electronvolt (eV), multiply the value by 27.211386. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 hartree to eV.

  • Step 1: Write the formula: eV = hartree × 27.211386
  • Step 2: Substitute: 1 × 27.211386
  • Step 3: Result: 27.211386 eV
So, 1 hartree = 27.211386 eV.

About the Units

Hartree

One Hartree equals 27.211386 Electronvolt (eV)

Common in nanotechnology, optical physics, and semiconductor design.

Electronvolt (eV)

One Electronvolt (eV) equals 0.036749 Hartree

Common in nanotechnology, optical physics, and semiconductor design.

Where This Conversion Is Used

  • Converting values from Hartree 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 Hartree?

1 hartree = 27.211386 eV.

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

Multiply the hartree value by 27.211386.

Can I reverse the conversion?

Yes. 1 eV = 0.036749 hartree.

Conclusion

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

Quick Links for Unit Converters

Convert Hartree to Other Units

Hartree to Joule

1 hartree = 4.3597447222071e-18 J

1 Hartree = 4.3597447222071e-18 Joule (J)

1 hartree equals 4.3597447222071e-18 J.

Hartree to Kilojoule

1 hartree = 4.3597447222071e-21 kJ

1 Hartree = 4.3597447222071e-21 Kilojoule (kJ)

1 hartree equals 4.3597447222071e-21 kJ.

Hartree to Megajoule

1 hartree = 4.3597447222071e-24 MJ

1 Hartree = 4.3597447222071e-24 Megajoule (MJ)

1 hartree equals 4.3597447222071e-24 MJ.

Hartree to Gigajoule

1 hartree = 4.3597447222071e-27 GJ

1 Hartree = 4.3597447222071e-27 Gigajoule (GJ)

1 hartree equals 4.3597447222071e-27 GJ.

Hartree to Watt-hour

1 hartree = 1.2110402006130834e-21 Wh

1 Hartree = 1.2110402006130834e-21 Watt-hour (Wh)

1 hartree equals 1.2110402006130834e-21 Wh.

Hartree to Kilowatt-hour

1 hartree = 1.2110402006130833e-24 kWh

1 Hartree = 1.2110402006130833e-24 Kilowatt-hour (kWh)

1 hartree equals 1.2110402006130833e-24 kWh.

Hartree to Megawatt-hour

1 hartree = 1.2110402006130833e-27 MWh

1 Hartree = 1.2110402006130833e-27 Megawatt-hour (MWh)

1 hartree equals 1.2110402006130833e-27 MWh.

Hartree to Erg

1 hartree = 4.3597447222071004e-11 erg

1 Hartree = 4.3597447222071004e-11 Erg

1 hartree equals 4.3597447222071004e-11 erg.

Hartree to Calorie

1 hartree = 1.0420039967034178e-18 cal

1 Hartree = 1.0420039967034178e-18 Calorie (cal)

1 hartree equals 1.0420039967034178e-18 cal.

Hartree to Kilocalorie

1 hartree = 1.0420039967034177e-21 kcal

1 Hartree = 1.0420039967034177e-21 Kilocalorie (kcal)

1 hartree equals 1.0420039967034177e-21 kcal.

Hartree to British Thermal Unit

1 hartree = 4.132224444303736e-21 BTU

1 Hartree = 4.132224444303736e-21 British Thermal Unit (BTU)

1 hartree equals 4.132224444303736e-21 BTU.

Hartree to Foot-pound force

1 hartree = 3.215582688397262e-18 ft_lbf

1 Hartree = 3.215582688397262e-18 Foot-pound force (ft⋅lbf)

1 hartree equals 3.215582688397262e-18 ft_lbf.

Hartree to Horsepower-hour

1 hartree = 1.6240331956203295e-24 hp_h

1 Hartree = 1.6240331956203295e-24 Horsepower-hour (hp⋅h)

1 hartree equals 1.6240331956203295e-24 hp_h.

Hartree to Therm

1 hartree = 4.132224444303736e-26 therm_us

1 Hartree = 4.132224444303736e-26 Therm (US)

1 hartree equals 4.132224444303736e-26 therm_us.

Hartree to Electronvolt

1 hartree = 27.211386245988034 eV

1 Hartree = 27.211386245988034 Electronvolts (eV)

1 hartree equals 27.211386245988034 eVs.

Hartree to Kiloelectronvolt

1 hartree = 0.027211386245988033 keV

1 Hartree = 0.027211386245988033 Kiloelectronvolt (keV)

1 hartree equals 0.027211386245988033 keV.

Hartree to Megaelectronvolt

1 hartree = 0.00002721138624598803 MeV

1 Hartree = 0.00002721138624598803 Megaelectronvolt (MeV)

1 hartree equals 0.00002721138624598803 MeV.

Hartree to Gigaelectronvolt

1 hartree = 2.721138624598803e-8 GeV

1 Hartree = 2.721138624598803e-8 Gigaelectronvolt (GeV)

1 hartree equals 2.721138624598803e-8 GeV.

Hartree to Tonne of Oil Equivalent

1 hartree = 1.041307137242548e-28 toe

1 Hartree = 1.041307137242548e-28 Tonne of Oil Equivalent (toe)

1 hartree equals 1.041307137242548e-28 toe.

Hartree to Tonne of Coal Equivalent

1 hartree = 1.4875816246322115e-28 tce

1 Hartree = 1.4875816246322115e-28 Tonne of Coal Equivalent (tce)

1 hartree equals 1.4875816246322115e-28 tce.

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.