If you need to purchase a washing machine belt, the cost of the belt should not deter you from going through with the repair. The cost of the belt will depend on what model you have and what brand the machine is.
Usually, the washing machine belt will be around $20 or less. You can purchase these belts from a parts store in your local area, or you can order them online from a parts retailer. If you only have a broken belt on your washing machine, this should be one of the least expensive repairs that you can undertake.