# Thread: How to calculate how much water to drink

1. ## How to calculate how much water to drink

I'm around 5'7 maybe around 23% body fat and I'm trying to calculate how much water I need to drink a day?

Is there a method I can use to calculate as ask the before l methods I've read are targeted for USA (I'm in UK) which is probably targeting hotter areas but others give wild example i.e. 8 glasses but didn't mention how many ml is one glass.

2. In the UK, use a pint glass. If you're in the US, use a mason jar.

In general, if you're thirsty, drink some water. In you don't get thirsty much, still drink some water. IMO you're unlikely to get unintentionally overhydrated, so err on the side of more rather than calculating out ml or how much you need to replace based on human biology, physical activity and climate.

3. Don't know who all I can speak for with this, but I simply drink water when I'm thirsty. This usually does result in a considerable amount, however. I probably drink a gallon a day at least.

4. Originally Posted by EliKoehn
Don't know who all I can speak for with this, but I simply drink water when I'm thirsty. This usually does result in a considerable amount, however. I probably drink a gallon a day at least.
Drink until your pee is almost clear.

5. are you really willing to drink a certain amount of water per day? just drink when you're thirsty or sip on it if you like, no point in calculating a certain amount to drink

6. Originally Posted by faithbrah
are you really willing to drink a certain amount of water per day? just drink when you're thirsty or sip on it if you like, no point in calculating a certain amount to drink
Well it depends..... I'm curious to know as to whether I am drinking the right amount.... I drink loads before and after training (I train in the morning) and go to the toilet..... During work hours they may not be as flexible allowing me to go toilet so I limit myself

7. Take your lean body mass and divide it by your body fat percentage. Convert that number in ounces to pints. Fill each pint with water and drink until you aren't thirsty anymore.

8. Originally Posted by nothingshocking
Take your lean body mass and divide it by your body fat percentage. Convert that number in ounces to pints. Fill each pint with water and drink until you aren't thirsty anymore.
Translation: Relax. Have a pint. Or two.

9. Drink when you're thirsty, this may shock you but this has worked for humans since the dawn of time. Surprising how your body knows what it needs.

10. Originally Posted by gbullock32
Drink when you're thirsty, this may shock you but this has worked for humans since the dawn of time. Surprising how your body knows what it needs.
^ Das it

11. Originally Posted by MrBrave
I'm around 5'7 maybe around 23% body fat and I'm trying to calculate how much water I need to drink a day?

Is there a method I can use to calculate as ask the before l methods I've read are targeted for USA (I'm in UK) which is probably targeting hotter areas but others give wild example i.e. 8 glasses but didn't mention how many ml is one glass.
Brown pee = Drink more
Dark yellow pee = Drink slighly more
Light yellow pee = You are fine
Blank pee = Drink less

Smelly pee = Eat less asparagus
Red pee = You have other things to worry about than how much water you are drinking
Purple pee = Get your eyes checked

12. Originally Posted by air2fakie
Drink until your pee is almost clear.
Or until it tastes like water.

13. Originally Posted by desslok
Or until it tastes like water.
You'd have to drink water from your toilet to find out, and who'd ever be crazy enough to do something like that?

Oh wait...

14. Originally Posted by EiFit91
Brown pee = Drink more
Dark yellow pee = Drink slighly more
Light yellow pee = You are fine
Blank pee = Drink less

Smelly pee = Eat less asparagus
Red pee = You have other things to worry about than how much water you are drinking
Purple pee = Get your eyes checked
Hurts when you pee = See a doctor and stay away from the trashy women

15. Originally Posted by MrBrave
I'm around 5'7 maybe around 23% body fat and I'm trying to calculate how much water I need to drink a day?

Is there a method I can use to calculate as ask the before l methods I've read are targeted for USA (I'm in UK) which is probably targeting hotter areas but others give wild example i.e. 8 glasses but didn't mention how many ml is one glass.
When I was in the military, I learned from a corpsman to drink half your bodyweight in ounces per day for optimal hydration. Things might've changed since then, but it hasn't failed me yet and it makes it easy so I use it. That's my personal method.

So being in the UK, an ounce per kilogram is pretty close.

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