Volume

GSL_CONST_MKS_ACRE
The area of 1 acre.
GSL_CONST_MKS_LITER
The volume of 1 liter.
GSL_CONST_MKS_US_GALLON
The volume of 1 US gallon.
GSL_CONST_MKS_CANADIAN_GALLON
The volume of 1 Canadian gallon.
GSL_CONST_MKS_UK_GALLON
The volume of 1 UK gallon.
GSL_CONST_MKS_QUART
The volume of 1 quart.
GSL_CONST_MKS_PINT
The volume of 1 pint.