Convert Electronvolts to Kilotons of TNT
Convert Electronvolts (eV) to Kilotons of TNT (kt(TNT)) instantly and accurately.
Conversion Formula
kt(TNT) = eV × 3.829294058e-32
About Electronvolts
An electronvolt (eV) is the kinetic energy gained by one electron accelerated through 1 volt - exactly 1.602176634 × 10⁻¹⁹ J (fixed by the 2019 SI revision). It is the natural energy unit of atomic and particle physics: visible light photons carry 1.7-3.1 eV; hydrogen ionisation requires 13.6 eV; X-ray photons span 100 eV-100 keV; protons at the LHC reach 6.5 TeV. Rest masses use eV/c²: electron 0.511 MeV, proton 938.3 MeV, Higgs boson 125 GeV. Nuclear binding energy peaks at ~8 MeV/nucleon for iron-56. 1 eV = 1.602176634 × 10⁻¹⁹ J.
About Kilotons of TNT
A kiloton of TNT (kt(TNT)) = 10³ tons of TNT = exactly 4.184 TJ. It is the standard unit for sub-megaton nuclear weapon yields. Hiroshima's Little Boy: ~12-18 kt; Nagasaki's Fat Man: ~19-23 kt. The W88 warhead (Trident II) is ~475 kt; the W76 is ~100 kt. The Beirut port explosion (2020): estimated 0.5-1.1 kt. A magnitude 5.0 earthquake releases ~0.5-2 kt of seismic energy. A kiloton blast creates a fireball ~90-100 m radius and a lethal thermal radius of ~1-2 km. 1 kt(TNT) = 4.184 TJ = 1,162.8 MWh.
Quick Reference Table
| Electronvolts (eV) | Kilotons of TNT (kt(TNT)) |
|---|---|
| 1 eV | 3.829 × 10-32 kt(TNT) |
| 2 eV | 7.659 × 10-32 kt(TNT) |
| 5 eV | 1.915 × 10-31 kt(TNT) |
| 10 eV | 3.829 × 10-31 kt(TNT) |
| 25 eV | 9.573 × 10-31 kt(TNT) |
| 50 eV | 1.915 × 10-30 kt(TNT) |
| 100 eV | 3.829 × 10-30 kt(TNT) |