Relative Density

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

densityRelative density, abbreviated as RD, is the density or ratio of any substance relative to another substance.  It sometimes may be called just gravity or specific gravity.  Traditionally, specific gravity is used to compare the density of a substance relative to air (SG=1) or water (also SG=1).








relative density calculator

relative density formula

\(\large{ RD = \frac{\rho_s}{\rho_r} }\)   


\(\large{ RD }\) = relative density

\(\large{ \rho_r }\)   (Greek symbol rho) = reference density

\(\large{ \rho_s }\)   (Greek symbol rho) = substance density



Tags: Equations for Gravity Equations for Density Calculators