Convert energy units — joules, kilowatt-hours, calories, BTU, electron volts and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 eV | 4.450e-29 kWh | |
| 0.01 eV | 4.450e-28 kWh | |
| 0.1 eV | 4.450e-27 kWh | |
| 1 eV | 4.450e-26 kWh | |
| 5 eV | 2.225e-25 kWh | |
| 10 eV | 4.450e-25 kWh | |
| 50 eV | 2.225e-24 kWh | |
| 100 eV | 4.450e-24 kWh | |
| 1000 eV | 4.450e-23 kWh |
Formula: Kilowatt-Hour = Electron Volt × 4.4500e-26
Multiply any electron volt value by 4.4500e-26 to get kilowatt-hour.
Reverse: Electron Volt = Kilowatt-Hour × 2.2472e25
Common electron volt values — factor: 1 eV = 4.4500e-26 kWh
| Electron Volt (eV) | Kilowatt-Hour (kWh) | Context |
|---|---|---|
| 1 eV | 4.450e-26 kWh | Chemical bond |
| 100 eV | 4.450e-24 kWh | UV photon |
| 1e+04 eV | 4.450e-22 kWh | X-ray photon |
| 1e+06 eV | 4.450e-20 kWh | Gamma ray |
| 1.000e+09 eV | 4.450e-17 kWh | 1 GeV |
| 1.000e+12 eV | 4.450e-14 kWh | 1 TeV |
| 1.000e+15 eV | 4.450e-11 kWh | LHC range |
| 1.000e+18 eV | 4.450e-08 kWh | Ultra-high cosmic ray |
| 1.000e+21 eV | 4.450e-05 kWh | Macro scale |
| 1.000e+24 eV | 0.0445 kWh | Millijoule scale |
| 1.000e+27 eV | 44.5 kWh | Joule scale |
| 1.000e+30 eV | 4.45e+04 kWh | kJ scale |
| 1.000e+33 eV | 4.45e+07 kWh | MJ scale |
| 1.000e+36 eV | 4.450e+10 kWh | GJ scale |
| 1.000e+40 eV | 4.450e+14 kWh | Extreme |
1 eV = 4.4500e-26 kWh. Memorize for instant estimates.
Use 4.4500e-26 as a quick mental multiplier.
Multiply result by 2.2472e25 to recover the original eV value.
Works with beam energies, collision products, and mass-energy in eV.
Designs band gap structures — silicon band gap is 1.12 eV.
Selects tube voltage in keV for optimal diagnostic X-ray imaging.
Optimizes solar cell efficiency based on photon energy in eV.
Calculates nuclear binding energies and decay Q-values in MeV.
Measures work function and ionization energy in electron volts.
The electron volt (eV) is the energy gained by a single electron accelerating through a potential difference of one volt, equal to approximately 1.602 × 10⁻¹⁹ joules. It was formally adopted as a unit by the IEC in 1930.
Electron volts are the standard energy unit in atomic physics, particle physics, and semiconductor engineering. Chemical bond energies are a few eV; X-ray photons are kiloelectron volts (keV); particle accelerators measure GeV and TeV.
Interesting fact: The Large Hadron Collider accelerates protons to 6.8 TeV (6.8 × 10¹² eV). Visible light photons have energies of 1.8–3.1 eV. The rest mass energy of an electron is 511 keV.
The kilowatt-hour (kWh) is the commercial unit of electrical energy, equal to the energy consumed by a 1,000-watt appliance in one hour (3,600,000 joules). It became standard with the growth of the electrical grid in the late 19th century.
Electricity bills worldwide are denominated in kWh. A typical household uses 300–1,000 kWh per month. An electric car uses about 15–25 kWh per 100 km. Solar panels generate 250–400 kWh per year per panel.
Interesting fact: The average price of electricity in the US is about $0.12 per kWh. One kWh can run a 100W light bulb for 10 hours, charge a smartphone about 100 times, or power a laptop for 2-3 days.
Converting electron volt to kilowatt-hour is common across energy, nutrition, engineering, and science. Different sectors use different energy units — joules in physics, kcal in nutrition, kWh in electricity, and BTU in HVAC — making accurate conversion essential for cross-disciplinary work and international comparisons.
Quick reference: 5 eV = 2.2250e-25 kWh and 10 eV = 4.4500e-25 kWh. Reverse: 1 kWh = 2.2472e25 eV. Exact factor: 1 eV = 4.4500e-26 kWh.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.