Health Calculator Suite

Quick health math. No signup.

BMI Calculator

50-250 cm
10-300 kg
1-8
0-11
22-660 lb

Your Results:

BMI:
Category:
Healthy BMI Range: 18.5 - 24.9
Ideal Weight Range: kg

BMI is a rough guide. Not medical advice.

Try also: BMR/TDEE | Macros | Water

BMR, TDEE & Daily Calories

13-80 years
120-230 cm
30-250 kg

Your Results:

BMR (Basal Metabolic Rate): kcal/day
TDEE (Total Daily Energy Expenditure): kcal/day
Daily Target Calories: kcal/day
Daily Macros:
Carbohydrates: g/day
Protein: g/day
Fat: g/day

Formula used: Mifflin-St Jeor. Targets are estimates.

Try also: BMI | Macros | Water

Macro Planner

1000-5000 kcal

Your Macro Distribution:

Macro % kcal grams/day

Tip: Spread protein across meals for better absorption.

Try also: BMI | BMR/TDEE | Water

Water Intake Calculator

30-200 kg
0-180 minutes

Your Daily Water Needs:

Total: liters/day
Breakdown:
Base from weight: L
Add-on from exercise: L
Extra for climate: L

Replace water lost in heat and activity. Balance electrolytes.

Try also: BMI | BMR/TDEE | Macros

Direct Calculator Links

Quick access to specific health calculators:

BMI
BMR/TDEE
Macros
Water
Available Calculators:
• BMI Calculator - Calculate Body Mass Index
• BMR/TDEE Calculator - Basal Metabolic Rate and Total Daily Energy Expenditure
• Macro Calculator - Calculate daily protein, carbs, and fats
• Water Intake Calculator - Daily water requirements

Frequently Asked Questions

BMI (Body Mass Index) is a simple measure that uses your height and weight to determine if you're at a healthy weight. While it's widely used, BMI is just a rough guide and doesn't account for muscle mass, bone density, or body composition. It's best used as one of many health indicators.

BMR (Basal Metabolic Rate) is the number of calories your body needs at rest to maintain basic functions like breathing and circulation. TDEE (Total Daily Energy Expenditure) is your BMR multiplied by your activity level, representing the total calories you burn in a day including all activities.

To lose weight safely, you typically need a calorie deficit of 500-1000 calories per day to lose 0.5-1 kg per week. Our calculator helps you determine your TDEE and subtracts the appropriate amount based on your weight loss goal. Always consult with a healthcare provider before starting any weight loss program.

The best macro split depends on your goals and preferences. Balanced (50/20/30) works well for general health. High-protein (40/30/30) supports muscle building and satiety. Low-carb (25/35/40) may help with weight loss for some people. Experiment to find what works best for your body and lifestyle.

A general guideline is 35ml per kg of body weight, plus additional water for exercise (about 12ml per minute of activity) and climate conditions. Individual needs vary based on activity level, climate, health conditions, and other factors. Listen to your body and adjust accordingly.

No. These calculators provide general estimates based on standard formulas. They are for informational purposes only and should not replace professional medical advice. Always consult with a qualified healthcare provider or registered dietitian for personalized health and nutrition guidance.