Hand
(Units Package Symbol) Hand is a unit of length.
Hectare is a unit of area.
Henry
(Units Package Symbol) Henry is the derived SI unit of inductance.
Hogshead is a unit of volume.
Horsepower is a unit of power.
Hour
(Units Package Symbol) Hour is a unit of time.
Hundredweight is a unit of weight.
ImperialGallon is a British volume unit.
ImperialPint is a British volume unit.
InchMercury is a unit of pressure.