The density of LPG (liquefied petroleum gas) varies depending on the composition of the gas mixture, temperature, and pressure. However, a typical value for the density of LPG at standard conditions (0°C and 1 atmosphere) is around 0.54 kg/liter or 540 kg/m³.

Therefore, 1 kg of LPG would occupy approximately 1/540 = 0.00185 cubic meters or 1.85 liters.