Calculate Your Daily Water Intake

Get your personalized hydration goal in 30 seconds based on science-backed recommendations

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Science-Based Formula
Quick Assessment0% Complete
🪑
Sedentary
Little/no exercise
🚶
Light
1-3 days/week
🏋️
Moderate
3-5 days/week
🏃‍♀️
Very Active
6-7 days/week
❄️
Cool
< 70°F
Moderate
70-85°F
☀️
Hot
> 85°F
💧

Your Personalized Hydration Goal

Based on your unique profile

8
Glasses
240ml per glass
64
oz
Daily total

🎯 Start Tracking Your Daily Goal

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Why Daily Water Intake Matters

Understanding your optimal hydration needs is crucial for maintaining peak physical and mental performance. Proper hydration affects every cell, tissue, and organ in your body.

🧠 Enhanced Brain Function

Your brain is approximately 73% water. Even mild dehydration can impair cognitive performance, affecting memory, focus, and mental clarity. Proper hydration supports optimal brain function and mood regulation.

💪 Physical Performance

Adequate hydration is essential for maintaining physical performance. Dehydration as little as 2% of body weight can significantly reduce endurance, strength, and motivation for physical activity.

Healthy Skin

Proper hydration improves skin elasticity, promotes natural oil production, and helps maintain a clear, bright complexion. Well-hydrated skin appears more youthful and resilient.

🫀 Heart Health

Adequate hydration helps maintain healthy blood pressure and supports cardiovascular function. Water intake affects heart rate and can help prevent cardiovascular stress.

🦴 Joint Health

Water helps lubricate joints and maintain the health of spinal discs. Proper hydration supports joint flexibility and can reduce discomfort from physical activity.

Energy & Metabolism

Drinking water before meals can promote satiety and support weight management efforts. Proper hydration also supports metabolism and energy expenditure throughout the day.

💡 Hydration Facts

60-70%
of your body weight is water
2%
dehydration impairs performance
8-10
glasses recommended daily

Factors That Affect Your Water Needs

🌡️ Climate & Environment

Hot, humid, or heated indoor environments increase water loss through sweating and respiration. Cold climates may also increase fluid needs due to increased energy requirements.

🏃 Physical Activity

Exercise increases fluid losses through sweat. Add 12-16 ounces of water for every 30 minutes of physical activity to compensate for these losses.

🤱 Pregnancy & Breastfeeding

Pregnant women need additional fluids to support increased blood volume and fetal development. Breastfeeding mothers require even more to support milk production.

🏥 Health Conditions

Certain medical conditions like diabetes, hypertension, or kidney issues may affect hydration needs. Always consult healthcare professionals for personalized advice.

Track Your Hydration Journey with SleepFlō

Our calculator gives you the starting point, but daily tracking helps you optimize your hydration for better health and sleep quality.

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