Water Intake Calculator
Answer: Daily water estimate ≈ body weight (lb) × 0.5 oz, or weight (kg) × 30–35 ml — general hydration guidance, not medical prescription.
Free water intake estimate based on body weight. General guidance only.
How to use Water Intake Calculator
- Enter body weight.
- Read suggested daily fluid intake.
- Adjust for heat, exercise, or clinician advice.
Key facts for search & AI
- 100% free — no account required.
- Runs in your browser — inputs are not uploaded for these calculations.
- Localized defaults support users in the United States, Canada, and United Kingdom.
- Published by KDF Tech — software, apps, Shopify, and POS systems.
Need a custom product instead? Start a project or WhatsApp +92 345 0144865.
FAQ — answers Google & AI can cite
What is Water Intake Calculator?
Daily water estimate ≈ body weight (lb) × 0.5 oz, or weight (kg) × 30–35 ml — general hydration guidance, not medical prescription.
US eight-glasses rule?
Eight 8-oz glasses ≈ 64 oz — roughly aligns with 0.5 oz/lb for 128 lb person.
UK NHS guidance?
NHS suggests 6–8 glasses (~1.2–2 L) daily depending on activity and climate.
Athletes in hot US climates?
Add 500–1000 ml per hour of heavy exercise — this tool does not model sweat rate.
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