An average-sized wash load will convert approximately 4965 kilojoules of ambient heat into latent heat that is stored in the evaporated water, as follows. A typical 4 kg load of laundry can contain 2.2 kg of water, after being spun in a laundry machine.[5] To determine how much heat has been converted in drying a load of laundry, weigh the clothes when they are wet and then again after the clothes have dried.