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    HealthMay 10, 20265 min read

    How Much Water Should You Drink Daily? A Complete Hydration Guide

    Find out exactly how much water you need each day based on your weight, activity level, and climate with our comprehensive hydration guide.

    Published May 10, 2026 · Updated June 19, 2026
    AM

    Achyutananda Meher

    Founder of Measurely

    Glass of fresh water with hydration drops

    Table of Contents

    • Why Hydration Matters
    • Signs of Dehydration
    • How Much Water Do You Need?
    • Factors That Affect Your Water Needs
    • Tips for Staying Hydrated
    • Calculate Your Water Needs

    Why Hydration Matters

    Water is essential for virtually every function in your body. It regulates temperature, lubricates joints, transports nutrients, and helps remove waste.

    Signs of Dehydration

    • Mild: Thirst, dry mouth, dark urine, headache
    • Moderate: Dizziness, confusion, decreased urination
    • Severe: Rapid heartbeat, sunken eyes, low blood pressure

    How Much Water Do You Need?

    Individual needs vary based on several factors.

    Factors That Affect Your Water Needs

    Body Weight: A general guideline is 30-35 ml per kg of body weight. Activity Level: Add 500-1000 ml for every hour of moderate exercise. Climate: You may need 500-1000 ml more per day in hot weather. Health Status: Fever, diarrhea, and pregnancy increase fluid needs.

    Tips for Staying Hydrated

    1. 1. Start your day with water � keep a glass on your nightstand
    2. 2. Use a marked water bottle with time goals
    3. 3. Set reminders on your phone
    4. 4. Eat water-rich foods like cucumbers, watermelon, and oranges
    5. 5. Flavor your water with lemon, mint, or berries

    Calculate Your Water Needs

    Use our water intake calculator to get a personalized recommendation.

    For overall health tracking, check your BMI and read our guides on understanding BMI and BMR and weight management.

    Calculate your daily water intake now.

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    AM

    About Achyutananda Meher

    Founder of Measurely

    Achyutananda Meher is the founder of Measurely. He created the platform to offer practical health tools like water intake and calorie calculators for better daily wellness.

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    On This Page

    • Why Hydration Matters
    • Signs of Dehydration
    • How Much Water Do You Need?
    • Factors That Affect Your Water Needs
    • Tips for Staying Hydrated
    • Calculate Your Water Needs

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