Washing machines generally weigh between 60 and 85 pounds. Exactly how heavy a washing machine is depends, among other things, on its size, model and brand. The specifications of your washing machine will tell you exactly how heavy it is. Often washing machines with a smaller fill weight (6 kg or 7 kg) are a few kilos lighter than those with a larger fill weight (8 kg or more). The thing that makes a washing machine so heavy is the counterweight at the bottom of the washing machine. These are usually made of concrete blocks, and ensure that the washing machine stays in place during the spin cycle.