AREA DENSITY

kilogram per square metre	kg m^-2
gram per square centimetre	g cm^-2
pound per square yard	lb yd^-2
pound per square foot	lb ft^-2
pound per square inch	lb in^-2
ounce per square inch	oz in^-2
ounce per square foot	oz ft^-2
ton (long UK) per square mile	tn mi^-2
ton (short US) per square mile	tn mi^-2
ton (long UK) per acre	tn ac^-2
ton (short US) per acre	tn ac^-2
tonnes (metric ton) per square kilometre	t kg^-2
millimetre of rain	mm