Daily Water Intake Calculator
Find out how much water you should drink daily based on your body weight, activity level, climate, and caffeine intake.
Your Details
Daily Water Intake
How Water Needs Are Calculated
A general guideline is 0.5 oz per pound of body weight, adjusted for activity level, climate, and caffeine consumption.
Sources
- • National Academies of Sciences. "Dietary Reference Intakes for Water."
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Frequently Asked Questions
How much water should I drink daily?
The general recommendation is about 8 glasses (64 oz) per day, but individual needs vary based on body size, activity, and climate.
Does caffeine dehydrate you?
Caffeine is a mild diuretic but moderate intake (up to 400mg/day) does not cause dehydration. Still, it is good to drink extra water to offset its effects.