`SG = p/(pH_2O)`

Enter a value for all fields

Specific gravity is a ratio of the density of a substance (e.g. a liquid) to the density of a referenced substance (e.g. water at a specified temperature, often at `4^o`C (`39^o`F)).

where:

• SG = specific gravity
• `ρ` = density of fluid or substance (`kg/m^3`)
• `ρH_2O` = density of water (`kg/m^3`)

Notes

The Specifi Gravity of a gas is the ratio of density of the gas to the density of air at a specified temperature and pressure.