Free evidence-based health calculators to track your wellness
Check your Body Mass Index and weight category
Estimate body fat percentage using Navy method
Find your healthy weight range based on height
Calculate your lean muscle mass
Assess health risk based on waist measurement
Evaluate body fat distribution risk
Plan your safe weight loss journey
Plan healthy weight gain with surplus calories
Discover your body's fitness age
Calculate your exact age in years, months, days
Find your Basal Metabolic Rate
Total Daily Energy Expenditure
Daily calorie requirement for your goal
Daily protein needs for your activity level
Protein, carbs, and fats breakdown
Calculate calories burned in activities
Track calories from your meals
Recommended daily fiber intake
Check your daily sugar limit
Daily sodium limit for heart health
Daily hydration needs for your body
Find your target heart rate training zones
Estimate your cardiovascular fitness
Understand your blood pressure reading
Optimal bedtime or wake time
Calculate sleep cycles for better rest
Find your ideal bedtime
Best wake times based on sleep cycles
Due date and pregnancy timeline
Track your fertile window
Fat-Free Mass Index — assess muscle mass
BRI — a newer body shape health metric
Body Surface Area using Mosteller formula
Estimated kidney function (CKD-EPI)
Assess depressive symptoms
Assess generalized anxiety symptoms
10-year cardiovascular disease risk
Calculate your one-rep max strength
Estimate VO₂max with the Cooper running test
Rate your upper body strength
Predict weekly and monthly weight loss
4-site skinfold body fat measurement
3-site YMCA skinfold body fat measurement
Skinfold body fat for ages 6-17
Assess health risk by waist measurement
8-week personalized running plan
Convert between metric and imperial units
Work/rest timer for interval training
Personalized meal plan based on your goals
Custom workout schedule for your fitness level
Improve your sleep with personalized tips
Stay hydrated with smart reminders
Comprehensive health assessment score
Plan balanced meals for your dietary needs
Understand and track your blood pressure