Water hardness

grain per US gallongpg

The US water-softener hardness unit.

Dimension: M/L⁻³
Canonical signature: L^-3*M
System: us customary
Exactness: Approximate

Definition record

How this unit is defined

Canonical base

1 gpg = 0.017118 kg/m³

Conversion type

formula

Aliases

grain per gallon, grains per gallon

Same dimension

kilogram per cubic metresikg/m³ gram per millilitresi acceptedg/mL milligram per litresi acceptedmg/L quettakilogram per cubic metresiQkg/m³ ronnakilogram per cubic metresiRkg/m³ yottakilogram per cubic metresiYkg/m³ zettakilogram per cubic metresiZkg/m³ exakilogram per cubic metresiEkg/m³

Common conversions

Every conversion routes through the canonical base of the dimension.

1 gpg = 0.017118 kg/m³

Approximate relationship

10 gpg = 0.17118 kg/m³

Approximate relationship