💧 Daily Water Intake Calculator
Calculate your personalized daily water needs based on your body, activity, and environment.
Weight Based
Activity Adjusted
Climate Aware
Hydration Score
Brain is
73% Water
Blood is
83% Water
Muscles are
79% Water
Bones are
31% Water
Your Details
kg
Best Times to Drink
Drink a glass upon waking, before meals, and during/after exercise.
Hydrating Foods
About 20% of water intake comes from food. Include water-rich foods.
Water Quality
Filtered water is best. Herbal teas and infused water count toward intake.
Frequently Asked Questions
Can I drink too much water?
Yes, overhydration (hyponatremia) is rare but possible. Stick to recommended amounts and listen to your body's thirst signals.
Does coffee dehydrate me?
Moderate caffeine (1-2 cups coffee) doesn't cause dehydration. The water in coffee still hydrates.
How do I know if I'm hydrated?
Check your urine color - pale yellow means good hydration. You should also rarely feel thirsty.