# Joule

The joule is the unit of energy in the International System of Units.

• One joule is the amount of energy required to move an object with a force of one newton through a distance of one metre.
• One joule is the amount of energy dissipated as heat when one ampere of electric current flows through a resistance of one ohm for one second.
• The joule is a small unit of energy, so it is often used in multiples, such as kilojoules (kJ) or megajoules (MJ).
##### eV to joules (J)
pico-electronvoltpeV1 peV = 1 x 10-12 (eV)
nano-electronvoltneV1 neV = 1 x 10-9 (eV)
micro-electronµeV1 µeV = 0.000001 (eV)
milli-electronvoltmeV1 meV = 0.001 (eV)
electronvolteV1 eV = 1 (eV)
kilo-electronvoltkeV1 keV = 1,000 (eV)
mega-electronvoltMeV1 MeV = 1,000,000 (eV)
giga-electronvoltGeV1 GeV = 1,000,000,000 (eV)1 GeV = 1.60218 x 10-10 (J)
tera-electronvoltTeV1 TeV = 1,000,000,000,000 (eV)1 TeV = 1.60218 x 10-7 (J)
peta-electronvoltPeV1 PeV = 1 x 1015 (eV)1 PeV = 1.60218 x 10-4 (J)
exa-electronvoltEeV1 EeV = 1 x 1018 (eV)1 EeV = 0.160218 (J)