Density is the shortened term generally used in place of the more accurate description volumetric density. It is a measure of mass per unit volume. The S I compatible unit of density is kilograms/cubic meter. However, this a rather large unit for most purposes (iron is over 7000, wood is about 600 and even cork is over 200). A much more useful size of unit is kilograms/liter (for which the previous values then become 7, 0.6 and 0.2 respectively). This unit also has the great advantage of being numerically unchanged for grams/cubic centimeter and tonnes/cubic meter (or megagrams/cubic meter). To change any of these other units of density into their equivalent values in kilograms/liter use the operation and conversion factor given. Those marked with * are exact.
grains/gallon(UK) divide by 70157 grains/gallon(US) divide by 58418 grams/cubic centimeter 1 grams/liter divide by 1000 * grams/milliliter 1 kilograms/cubic meter divide by 1000 * megagrams/cubic meter 1 milligrams/milliliter divide by 1000 * milligrams/liter divide by 1000000 * kilograms/liter 1 ounces/cubic inch x 1.729994044 ounces/gallon(UK) x 0.006236023 ounces/gallon(US) x 0.007489152 pounds/cubic inch x 27.679905 pounds/cubic foot x 0.016018463 pounds/gallon(UK) x 0.099776373 pounds/gallon(US) x 0.119826427 tonnes/cubic meter 1 tons(UK)/cubic yard x 1.328939184 tons(US)/cubic yard x 1.186552843 |