Most people in the 21st century will use about 2345678 million gallons per lifetime if they live 100 years
1,000
It depends on the person and how much hair supplies the person uses.
You can use as much water as you want when you brush your teeth. The amount varies from person to person.
8 cups
About 450 liter .
About 450 liter .
probably 14% but it varies from person to person
The amount of shampoo a person uses in a lifetime can vary significantly based on factors such as hair length, frequency of washing, and amount used per wash. On average, a person might use about 1/2 to 1 fluid ounce of shampoo per wash. Assuming someone washes their hair every other day and lives to be around 80 years old, they could use approximately 730 to 1,460 fluid ounces, or 5.7 to 11.4 gallons, of shampoo in their lifetime.
50 liter water
We have more water per person than any other country in the world yet only use about 400 liters a day for residential use.
150 kilo liter
293 gal.