Water Intake Calculator
Calculate your daily water intake needs based on weight and activity
Enter your weight to calculate
💧Why Hydration Matters
Water is essential for nearly every bodily function. It regulates body temperature, transports nutrients, removes waste, lubricates joints, and supports cognitive function. Even mild dehydration (1-2% body weight loss) can impair physical and mental performance.
The general recommendation of "8 glasses a day" is a good starting point, but your actual needs depend on your body weight, activity level, climate, and overall health. This calculator provides a personalized estimate based on these factors.
Signs of Dehydration
Mild Dehydration
- • Thirst
- • Dry mouth
- • Dark yellow urine
- • Fatigue
- • Headache
Severe Dehydration
- • Dizziness
- • Rapid heartbeat
- • Confusion
- • Very dark urine
- • Fainting
Water Sources Beyond Plain Water
Cucumbers (96% water)
Watermelon (92% water)
Oranges (87% water)
Milk (87% water)
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