Water facts

Water in your body

  • Your body is two-thirds water
  • Your bones are one-third water
  • Your brain is more than three-quarters water
  • A person could not survive a week without water – but could go without food for up to two months
  • Water regulates body temperature, prevents salt from building up, and carries nutrients from food into organs, bones, and tissue

Water in the home

  • A typical household uses about 100,000 litres of water a year
  • A bath uses about 80 litres of water
  • A washing machine uses an average of 100 litres a cycle
  • A garden sprinkler uses 1,000 litres an hour

Water in the world

  • 97% of the world’s water is held in the oceans
  • 2% is frozen in the polar ice caps
  • We use just 1% of all the world’s water – that comes from lakes, rivers, water in the atmosphere and in the ground
  • In the developed world, an average person uses 160 litres of water every day
  • In the developing world, an average person uses 10 litres a day.
  • All the rivers in the world, at any one time, only contain enough water to supply mankind for about 10 days.