How Much Water Does a Dishwasher Really Use Per Cycle?

Many people assume dishwashers waste water — but modern designs are surprisingly efficient. In fact, a dishwasher often uses less water than washing by hand, especially when you choose an energy-efficient model.

Average Water Use by Dishwasher Type

Modern dishwashers vary depending on size and programme type, but here’s a general guide to how much water they use per cycle:

How This Compares to Hand Washing

Washing dishes by hand under a running tap can use up to 40–60 litres of water. Even filling a washing bowl may use 10–15 litres — often more than a single CATA dishwasher cycle.

Tips to Reduce Dishwasher Water Use

• Always run a full load to make each cycle more efficient.
• Use the eco or auto programme for optimised water and energy balance.
• Avoid pre-rinsing under the tap — modern sensors clean effectively without it.
• Keep filters clean so your dishwasher can operate at peak performance.

Final Thoughts

A modern dishwasher typically uses less than half the water you’d use washing dishes by hand. Choosing an eco-friendly cycle and maintaining your appliance regularly can help you save even more.