Multiple choice How many litres of water does an average 10-minute shower use? 100 litres 190 litres 150 litres 80 litres Reveal answer Fill a bubble to check yourself B Correct answer Explanation A standard showerhead uses about 15 to 20 litres of water per minute. Therefore, a 10-minute shower typically consumes around 150 to 200 litres, making 190 litres a highly representative average for standard non-low-flow showerheads.