Convert Electronvolt mass to Slugs
Convert Electronvolt mass (eV/c²) to Slugs (slug) instantly and accurately.
Conversion Formula
slug = eV/c² × 1.221511428e-37
About Electronvolt mass
In particle physics, mass and energy are interchangeable via Einstein's E = mc². The electronvolt (eV) as a mass unit equals the mass equivalent of 1 eV of energy (approximately 1.783 × 10⁻³⁶ kg). Particle masses at the subatomic scale are routinely expressed in MeV/c² or GeV/c² - the proton mass is 938.3 MeV/c², and the electron is 0.511 MeV/c². The Higgs boson, discovered at CERN in 2012, has a mass of approximately 125.25 GeV/c². This unit is exclusively used in high-energy physics and quantum field theory, where conventional mass units like grams would require impossibly small exponents.
About Slugs
A slug is a unit of mass in the British imperial and US customary foot-pound-second (FPS) engineering system, equal to the mass that accelerates at 1 foot per second squared under a force of 1 pound-force - approximately 14.594 kg. The slug was introduced to simplify dynamics calculations in engineering: using slugs ensures that F = ma holds without unit conversion factors when force is in pounds-force and acceleration in ft/s². Aerospace engineers and mechanical engineers working in US customary units use slugs for aircraft mass, structural dynamics, and ballistic calculations.
Quick Reference Table
| Electronvolt mass (eV/c²) | Slugs (slug) |
|---|---|
| 1 eV/c² | 1.222 × 10-37 slug |
| 2 eV/c² | 2.443 × 10-37 slug |
| 5 eV/c² | 6.108 × 10-37 slug |
| 10 eV/c² | 1.222 × 10-36 slug |
| 25 eV/c² | 3.054 × 10-36 slug |
| 50 eV/c² | 6.108 × 10-36 slug |
| 100 eV/c² | 1.222 × 10-35 slug |