Free Health & Nutrition Tools
Professional calculators used by dietitians and health coaches. Calculate BMI, calories, macros, body fat, and more - completely free.
Popular Tools
Most used calculators by our community
BMI Calculator
Calculate your Body Mass Index
Calorie Calculator (TDEE)
Find your daily calorie needs
Water Intake Calculator
Calculate your daily water needs
Ideal Body Weight Calculator
Find your ideal weight range
Macro Calculator
Calculate your macronutrient needs
Body Fat Calculator
Estimate your body fat percentage
Metabolic Age Calculator
Calculate your metabolic age
VO2 Max Calculator
Estimate your aerobic fitness
Heart Rate Zones Calculator
Find your training heart rate zones
GLP-1 Weight Loss Calculator
Project GLP-1 medication weight loss
Keto Calculator
Calculate keto macros
Menopause Nutrition Calculator
Optimize nutrition during menopause
Thyroid Diet Calculator
Calculate nutrition for thyroid health
Anti-Inflammatory Diet Score
Rate your diet inflammation level
Cholesterol & Heart Health Calculator
DASH diet and cholesterol management
Vegan Nutrition Checker
Check vegan diet nutrient gaps
Nutrition
Calorie Calculator (TDEE)
Find your daily calorie needs
Water Intake Calculator
Calculate your daily water needs
Macro Calculator
Calculate your macronutrient needs
Portion Size Calculator
Convert and calculate portions
Glycemic Load Calculator
Calculate food glycemic impact
PCOS Nutrition Calculator
Calculate PCOS-friendly macros
Keto Calculator
Calculate keto macros
Children's Nutrition Calculator
Calculate nutrition needs for kids
Senior Nutrition Calculator
Calculate nutrition needs for seniors
Low FODMAP Calculator
Check FODMAP levels in foods
Protein Timing Calculator
Optimize protein intake timing
Anti-Inflammatory Diet Score
Rate your diet inflammation level
Alcohol Calorie Calculator
Calculate calories in alcoholic drinks
Vegan Nutrition Checker
Check vegan diet nutrient gaps
Gut Health & Prebiotic Score
Calculate your gut health score
Health Assessment
Pregnancy Weight Gain Calculator
Track healthy pregnancy weight
Diabetes Risk Assessment
Assess your Type 2 diabetes risk
GLP-1 Weight Loss Calculator
Project GLP-1 medication weight loss
Renal Diet Calculator
Calculate kidney-friendly nutrition
Postpartum Weight Loss Calculator
Plan postpartum weight loss safely
Menopause Nutrition Calculator
Optimize nutrition during menopause
Thyroid Diet Calculator
Calculate nutrition for thyroid health
Cholesterol & Heart Health Calculator
DASH diet and cholesterol management
Eating Habits Assessment
Assess your eating patterns and behaviors
Bariatric Surgery Nutrition Calculator
Pre and post-bariatric surgery nutrition
Planning
Intermittent Fasting Calculator
Plan your fasting schedule
Weight Loss Target Date Calculator
Plan your weight loss timeline
Recipe Scaling Calculator
Scale recipe ingredient amounts
Supplement Stack Calculator
Calculate supplement dosages
Caffeine Calculator
Optimize caffeine timing and intake
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