18.9 litres of water equals how many pounds?

To convert liters of water to pounds, we need to know the density of water, which is approximately 1 kilogram per liter. To convert kilograms to pounds, we use the conversion factor of 1 kilogram = 2.20462 pounds. Therefore, 18.9 liters of water would equal approximately 41.67 pounds (18.9 kg * 2.20462 lbs/kg).