Ton of TNT tTNT

SymboltTNT
SystemScientific
QuantityEnergy
Value in SI4.184 × 10⁹ J (exact by convention)

About the Ton of TNT

The ton of TNT is a conventional energy unit of exactly 4.184 gigajoules, or 10⁹ thermochemical calories, used for explosions, earthquakes and asteroid impacts. The Hiroshima bomb released roughly 15 kilotons. The real energy of TNT varies with conditions, which is why the unit is fixed by definition.

Related Units