How many water bottles is that?

See your daily drinks as a number of bottles, which is easier to picture and plan.

Your details

Drinks a day
Bottle size
Days

1.5 litres a day in 500 ml bottles

3.0 bottles

1,095 bottles over 365 days

  • Glasses (200 ml)7.5 a day
  • NHS guide6 to 8 glasses of fluid a day
  • Single use bottles saved by refilling one1,095

Tea, coffee, milk and sugar free drinks all count as well as water. Refilling one bottle saves a lot of plastic, and tap water in the UK is safe and cheap.

See a GP if you are always thirsty, or pee much more or less than usual.

The working

1.5 litres a day in 500 ml bottles

1.5 litres is 3 bottles of 500 ml, or 7.5 glasses of 200 ml, inside the NHS 6 to 8 glasses. Over a year that is 1,095 bottles, every one of them saved if you refill the same bottle.

Bottle sizes

For 1.5 litres a day

BottleA dayA year
330 ml4.51,659
500 ml31,095
750 ml2730
1 litre1.5548

Easy ways to drink enough

Ideas

  • Keep a bottle on your desk or in your bag
  • A glass with every meal
  • Add a slice of lemon or cucumber
  • More in hot weather and when active

Read with care

What this cannot tell you

  • Know your needsHeat, activity, pregnancy and illness change them.
  • Count food waterAbout a fifth comes from food.
  • Count only waterTea, coffee and milk count too.

Questions

Common questions

How much water should I drink a day?

The NHS suggests 6 to 8 glasses of fluid, about 1.2 to 2 litres; more when it is hot or you are active.

How many 500 ml bottles is 2 litres?

Four.

Is tap water safe in the UK?

Yes, it is among the most tested in the world.

Can you drink too much water?

Very rarely, mostly in endurance events. Drink to thirst.

Sources

Last checked 21 October 2026. Spotted something wrong? Tell us and we will fix it.

Thirst and peeing

See a GP if you are always thirsty, are peeing much more or less than usual, or have very dark pee that does not clear with drinking.

Related

Related calculators