Water Bottle Goal Calculator: Refills per Day

WATER BOTTLE GOAL CALCULATOR

One bottle.
A simple daily plan.

Turn your daily water goal into how many bottles to finish and when to refill, spread across your day.

01 / YOUR DETAILS

Make it personal.

Start with the example, or enter your own details.

Not sure of your goal? Work out how much water you need from your body and day.

Water intake calculator

BEHIND YOUR NUMBER

A little understanding
goes a long way.

How much water do I need?

The NHS suggests 6–8 glasses of fluid a day, about 1.5–2 litres. Many people need more when active or in hot weather. A common estimate is 30–35 ml per kg of bodyweight.

Does food count?

Yes. About 20% of fluid typically comes from food. Tea, coffee and milk count too.

Is this calculator for me?

It suits healthy adults planning everyday eating. It is not medical advice. If you are pregnant, under 18, or have kidney disease, diabetes or another condition, check with your GP or a registered dietitian.

YOUR FOOD. A CLEARER PLAN.Calculations happen on your device.