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Conversões & Saúde3 min•2026-10-29•Compute-Hub Health Editorial
Daily Water Intake: How Much Water Should You Really Drink?
Scientifically calculating optimal hydration based on weight, workout intensity, and climate.
Key Takeaways
- Baseline rule: Drink 30ml to 35ml of water per kilogram of body weight (approx. 0.5 oz per pound).
- Add 350ml to 500ml for every 30 minutes of vigorous cardiovascular exercise.
- Hot or dry weather requires an additional 500ml to 750ml to compensate for perspiration.
- Caffeinated beverages and fruits contribute to total fluid intake, but pure water should form the core.
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The Scientific Daily Hydration Formula
Your kidneys, muscles, and cellular metabolism require water volume proportional to your lean mass. A 90kg athlete needs drastically more hydration than a 50kg sedentary worker.
Mathematical Formula:Target Water (ml) = (Weight in kg × 35) + (Exercise Minutes × 12) + (500ml if hot climate)
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Frequently Asked Questions
FAQ: Daily Water Intake: How Much Water Should You Really Drink?
Can you drink too much water?
Yes. Drinking excessive amounts of water in a short window without electrolytes can dilute blood sodium levels, leading to hyponatremia. Pace your hydration steadily throughout the waking hours.