Daily Water Intake Calculator | How Much Water to Drink a Day

Calculate your recommended daily water intake based on your weight and activity level.

Water Intake Calculator

Your Recommended Intake

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Liters / day

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Enter your weight and activity level.


Base Intake
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Activity Adjustment
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Why Hydration Matters for Lung Health

Proper hydration keeps mucus thin, supports lung function, and helps prevent respiratory issues. Dehydration can make asthma and COPD symptoms worse.

Hydration Tips

Start your day with a glass of water

Drink before meals

Carry a bottle during activity

Eat water-rich foods (cucumber, watermelon)

Recommended Medical Devices

These products may help you monitor your health at home. Always consult your healthcare provider before making medical decisions.

Amazon Choice
Finger Pulse Oximeter, O2
★★★★★ 4.7/5

OLED Finger Pulse Oximeter, O2 Meter, Dual Color White/Black

Pros
  • Quickly measure blood oxygen saturation (SpO2)
  • pulse rate,
  • Features 4 display directions
  • 6 display modes
  • 10 adjustable brightness levels for clear
  • easy-to-read results
Amazon Choice
Levoit Humidifiers for Bedroom 4.2L
★★★★★ 4.5/5

270?mL/h mist output, 432?ft² coverage, and 46.8-inch mist height* to powerfully humidify your room and relieve dryness fast. *The height includes the product height.

Pros
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  • Easy Cleansing
  • All Day Run Time
  • Gentle NIght Light
Cons
  • This product is compatible with outlets that support 100 volts and might require a converter when used outside of the United States.
Amazon Choice
Weekly Pill Organizer
★★★★★ 4.7/5

Weekly Pill Organizer 2 Times a Day, KOVIUU Large Travel Pill Box 7 Day, Am Pm Twice Daily Pill Case with Rotatable Handle, Week Pill Holder Container for Vitamin Medicine Supplement Fish Oil, Black

Pros
  • Airtight
  • BPA-Free
  • Easy Open
  • Portable
  • Reusable
Affiliate Disclosure: As an Amazon Associate, PulmoCare may earn from qualifying purchases. This does not affect the price you pay.