How Much Water Should a Woman Drink a Day UK?

If you are a mum who runs on cold tea, the odd sip from your child’s water bottle and whatever is left in the cup by the kettle at 4pm, this one is for you. Many of the women I coach in Archway tell me they “forget to drink” until they get a headache. If you have ever typed “how much water should a woman drink a day UK” into Google at 11pm, here is the simple NHS guide, what it looks like in glasses, cups and pints, and a few tricks that actually work when your day is not your own.

How much water should a woman drink a day UK? The NHS answer

The NHS advice, based on the Eatwell Guide, is to drink 6 to 8 cups or glasses of fluid a day. You can read it on the NHS page on water, drinks and hydration. The NHS is clear that this is a guide, and some people will need more.

The same guidance applies to men and women. There is no special “women’s number” on the NHS page. What changes is your size, how active you are, the weather, and things like pregnancy and breastfeeding.

What that looks like in real life

A typical glass or mug holds roughly 200 to 250ml. So 6 to 8 of them comes to roughly:

• Litres: about 1.2 to 2 litres a day
• Pints: about 2 to 3.5 pints a day (a UK pint is 568ml)
• Cups: 6 to 8 standard mugs or glasses
• Bottles: about two to three 500ml bottles, if you refill one through the day

Do not get hung up on hitting an exact millilitre. The aim is to drink steadily through the day so you are rarely thirsty.

What counts towards your fluid

Good news for tea lovers. The NHS says water, lower-fat milk and lower-sugar or sugar-free drinks, including tea and coffee, all count. Water is the best choice because it has no sugar and no calories.

A few things to keep an eye on:

• Caffeine. Tea and coffee count, but keep caffeine moderate. If you are relying on four coffees to get through the afternoon, my post on how to get more energy as a tired parent may help more than the next espresso.
• Juice and smoothies. They count, but they are sugary. The NHS suggests a maximum of one small glass (150ml) of fruit juice or smoothie a day.
• Fizzy and energy drinks. Sugar-free versions count as fluid, but water is still the better everyday choice.
• Food. Fruit, veg, soups and yoghurts also add some fluid.

When you need more than 6 to 8 glasses

The NHS lists several times you may need to drink more. The ones I see most in busy mums are:

• Exercise. If you sweat in a class or on a run, drink extra afterwards. Water is the best way to replace it for most people.
• Hot weather or hot rooms. Summer in London, or a warm office.
• Pregnancy and breastfeeding. Both are listed by the NHS as reasons you may need more fluid. If you are pregnant or breastfeeding, follow your midwife or GP’s advice on fluids and caffeine. The NHS advises no more than 200mg of caffeine a day in pregnancy.
• Illness. Being sick, diarrhoea or a high temperature all increase fluid loss.

Signs you are not drinking enough

The NHS page on dehydration lists symptoms such as feeling thirsty, a headache, dizziness or light-headedness, tiredness, a dry mouth and lips, and dark yellow, strong-smelling pee.

The simplest check is your pee colour. Pale is the goal. Dark yellow means drink more. If you feel very unwell, dizzy when you stand that does not go away, or you are peeing much less than usual, get an urgent GP appointment or call NHS 111.

And one honest note: a lot of “tired mum” feeling is plain tiredness, not dehydration. Water helps, but it will not fix three broken nights in a row. If you are constantly exhausted, talk to your GP.

Seven easy ways to drink more when you are busy

1. Glass before coffee. Drink one glass of water while the kettle boils in the morning.
2. Match the kids. When you fill their bottles for school, fill yours too and take it with you.
3. Anchor it to routines. A glass with each meal, one at the school gate, one at bath time. That is 5 straight away.
4. Use a marked bottle. A 1 litre bottle you finish by lunch and refill once takes the counting out of it.
5. Make it taste of something. Slices of lemon, cucumber, mint or a splash of sugar-free squash.
6. Swap one drink. If you have a fizzy drink every afternoon, swap it for sparkling water a few days a week.
7. Drink around exercise. A glass before you leave and another when you get home.

If you want the general version of this for everyone in the house, read my guide on how much water you should drink, and for the little ones, how much water children should drink.

Water, exercise and energy

In my classes I always ask people to bring a water bottle. Most of the women I coach train after the school drop-off or in the evening, often after hours of rushing about, and many arrive already a bit dry. A few sips before we start and between rounds makes a real difference to how they feel by the end.

If your main problem is that afternoon slump, my SYP Recharge energy and focus class is built around moving in a way that leaves you with more energy, not less. Pair it with steady drinking and decent sleep where you can, and most people notice a difference within a few weeks.

FAQs

Is 2 litres of water a day too much for a woman?

For most healthy women, no. It sits at the upper end of the NHS 6 to 8 glasses guide, and you may need that or more if you are active or it is hot. If you have a heart or kidney condition, follow your doctor’s fluid advice.

How many pints of water a day should a woman drink?

The NHS guide of 6 to 8 glasses works out at roughly 2 to 3.5 pints of fluid a day, depending on the size of your glass. That includes tea, coffee and milk.

Does tea and coffee count as water intake?

Yes. The NHS says tea and coffee count towards your fluid. Just keep caffeine moderate, and lower if you are pregnant.

Can drinking more water help with weight loss?

Water has no calories, so swapping sugary drinks for water can help. It is not a magic fix on its own, but staying hydrated makes it easier to tell thirst from hunger.

Book your first class

Bring your water bottle and come and train with other mums and dads. SYP Bootcamp runs 45-minute small-group classes indoors in a church hall in Archway N19, max 10 people, £15 a class, with an easier and harder option for every exercise. Book your £15 class here or call or WhatsApp me on 07301 512215 if you have questions. If you would prefer 1-1 coaching designed around a woman’s body, energy and schedule, see personal training for women at SYP Fitness.

About the author

Artem Olekhnovych is a personal trainer in Archway and the founder of SYP Fitness and SYP Bootcamp. He has coached clients in Archway, Highgate and across North London for over 10 years, and runs small-group bootcamp classes for busy mums and dads. Read reviews from his 1-1 clients.