Estimate only. Applies to landed houses with their own meter. In high-rise units, ask building management about your meter. If you have a roof tank, wait until it has finished refilling before the first reading. Read the full guide: High Water Bill? Check Your Meter.
Water meter leak test calculator
Close every tap and water-using appliance, take one meter reading, wait with nothing used, then take a second. Enter both readings below.
600 litres
- Water used during the test
- 50 L
- Over 30 days
- 18 m³
Movement with every tap closed points to a leak after the meter (owner's side in landed houses). Check toilet cisterns and the tank overflow first, then read the Pipe Leaks guides.