1kg/m3 = 1000 /10^6 g/cm3 1kg = 1000g1m3 = 10^6 cm3 (10的六次方)
1 kg= 1000 g1 m^3 = 10^6 cm^3 所以1kg/m^3 = 1000 /10^6 g/cm^3=0.001 g/cm^3
1kg/m3=10^3g/cm3如水的密度是1000kg/m3,也可换算成1g/cm3
