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Daily Water Intake
Work out how much water to drink each day from your body weight, in millilitres, cups and bottles.
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When to use it
65kg → about 1,950 mL, ten 200 mL cups
80kg → about 2,400 mL, five 500 mL bottles
Drink 500 mL extra on hot days
How to use it
1Step 1Fill in Weight
2Step 2Change a value and the result updates instantly
3Step 3Save or copy the result
If the result looks off
The result looks wrong
Check the units and the baseline first. Changing a value updates the result instantly.
I want the starting values back
Press reset to return to the initial state.
Frequently asked questions
Does coffee count?
Caffeine is mildly diuretic, so this target is for plain water.
Should I drink more when exercising?
Yes — add roughly 500 mL on hot days or after hard exercise.
Can I drink it all at once?
Sip through the day — spreading it out is easier on your body than one big glass.