1,000 electronvolts
1.602 × 10⁻¹⁶ JEnergy · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Energy
Just how much energy is 1,000 electronvolts?
Molecular
1,000 eV
1.6022 × 10⁻¹⁶ Jjoules
4.4505 × 10⁻²³ kWhkilowatt-hours
3.8293 × 10⁻²⁰ kcalkilocalories
01
1,000 electronvolts1.602 × 10⁻¹⁶ JEnergy · definition
02
Hydrogen atom ground-state binding energy13.61 eVGround-state binding energy · recommended value
Bar length represents energy. Equal energy does not imply the same temperature, power or usefulness.
A little perspective
The energy of 1,000 electronvolts is about 73.5 times the ground-state binding energy of Hydrogen atom ground-state binding energy.
Measurements, assumptions & sources +
1,000 electronvolts
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Hydrogen atom ground-state binding energy
The magnitude of the hydrogen ground-state binding energy is approximately 13.598 eV, or 2.1799 × 10⁻¹⁸ J. It is the energy required to ionise ground-state hydrogen, not a classical stored-energy shell.
NIST — Atomic spectra database ionization energies
The marked ground-state binding energy is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
The visual compares energy with ground-state binding energy. The records below preserve each value’s basis and caveats.
Hydrogen atom ground-state binding energy
13.61 eVGround-state binding energy · recommended value
The magnitude of the hydrogen ground-state binding energy is approximately 13.598 eV, or 2.1799 × 10⁻¹⁸ J. It is the energy required to ionise ground-state hydrogen, not a classical stored-energy shell.
- Comparing
- Energy ↔ Ground-state binding energy
- Relative size
- 1,000 electronvolts is larger on this measurement by a factor of about 73.5.
How to read the visual
The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.
- Hydrogen atom ground-state binding energy is labelled recommended value; treat the displayed value as a comparison anchor rather than false precision.
Change your perspective
Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
A little smaller. A little larger.