About limestone 1 cubic meter of limestone weighs 2 711 kilograms kg 1 cubic foot of limestone weighs 1692422 pounds lbs limestone weighs 2711 gram per cubic centimeter or 2 711 kilogram per cubic meter ie density of limestone is equal to 2 711 kgm at 252 c 7736 f or 29835k at standard atmospheric pressurein imperial or us customary measurement system the density is.