Free, fast, mobile-friendly health calculators
Daily Water Intake (ml/kg) + BMI (kg/cm) & TDEE Calorie Calculators
Find your personalized hydration, BMI, and daily calories using evidence-based formulas. Fast, lightweight, and mobile-friendly.
How Much Water Should I Drink Per Day? (Hydration Calculator in ml per kg & Liters)
Rule of thumb: 35 ml/kg + ~350 ml / 30 min exercise + extra for heat. Always follow your clinician’s advice.
BMI Calculator for Adults (kg/cm) – Check Healthy Weight Range
Categories: Underweight <18.5 Healthy 18.5–24.9 Overweight 25–29.9 Obesity ≥30
Daily Calorie Needs (TDEE) using Mifflin–St Jeor – Maintenance Calories
Outputs include BMR, maintenance calories, and example targets for a mild (−10%) or deeper (−20%) cut, and a lean bulk (+10%).
Latest Guides
How Much Water Should You Drink for Weight Loss?
Use the ml/kg method + exercise and climate adjustments to set your daily target.
BMI Chart for Adults (kg/cm)
Understand categories, limitations, and how to interpret your BMI result.
Calculate Daily Calorie Needs (TDEE)
Learn Mifflin–St Jeor and activity factors with real-world examples.
FAQs
Does tea or coffee count toward water?
Yes, most beverages contribute. Water is best; limit sugary drinks and high caffeine if sensitive.
Is BMI accurate for athletes?
BMI doesn’t separate muscle from fat. Muscular people may score higher despite low body fat.
How should I use my TDEE number?
Use it as a starting point: small deficit for fat loss, small surplus for lean gain. Track and adjust.
Contact
Questions or feedback? Email info@stayfit360.com.