HEPUnits

Natural unit system with GeV $\equiv$ 1 for high energy physics (HEP).

julia> ]
pkg> add HEPUnits

None of the units are exported for cleanliness. We can use this package as follows,

using HEPUnits; const units = HEPUnits

m = 1units.MeV
t = 1e-3 * units.yr
# etc.