<Tr> <Th> Common symbols </Th> <Td> ρ </Td> </Tr> <Tr> <Th> SI unit </Th> <Td> kg / m </Td> </Tr> <P> The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume . The symbol most often used for density is ρ (the lower case Greek letter rho), although the Latin letter D can also be used . Mathematically, density is defined as mass divided by volume: </P> <Dl> <Dd> ρ = m V (\ displaystyle \ rho = (\ frac (m) (V))) </Dd> </Dl>

What is the symbol of density in physics