Health Tools & Calculators
Professional-grade health calculators and tools for fitness, nutrition, medical tracking, and wellness. All free to use.
Fitness & Body Composition
TDEE Calculator
Calculate Total Daily Energy Expenditure
BMI Calculator
Calculate Body Mass Index
FFMI Calculator
Fat-Free Mass Index for athletes
One Rep Max Calculator
Calculate your 1-rep max
VO2 Max Calculator
Calculate VO2 Max for cardio fitness
BSA Calculator
Calculate body surface area
Waist to Hip Ratio Calculator
Calculate waist-to-hip ratio
RPE Calculator
Rate of Perceived Exertion
Target Heart Rate Calculator
Calculate target heart rate zones
Nutrition & Diet
Macros Calculator
Calculate protein, carbs, and fat
Calorie Burned Calculator
Calories burned during exercise
Recipe Nutrition Calculator
Analyze recipe nutrition facts
Water Intake Calculator
Calculate daily water needs
Weight Watchers Calculator
Weight Watchers points calculator
Keto Macro Calculator
Keto diet macro calculator
BAC Calculator
Blood Alcohol Content calculator
Starbucks Calorie Calculator
Starbucks nutrition calculator
Chipotle Calorie Calculator
Chipotle nutrition calculator
Cava Calorie Calculator
Cava nutrition calculator
Pregnancy & Parenting
Due Date Calculator
Calculate baby due date
Ovulation Calculator
Calculate ovulation period
Implantation Calculator
Calculate implantation date
Pregnancy Weight Gain Calculator
Track pregnancy weight gain
Baby Percentile Calculator
Track baby growth percentiles
Child Height Calculator
Predict child adult height
Medical Indicators
A1C Calculator
A1C to average blood glucose
Creatinine Clearance Calculator
Kidney function assessment
Anion Gap Calculator
Acid-base status assessment
Corrected Calcium Calculator
Calculate corrected calcium
MAP Calculator
Mean Arterial Pressure calculator
LDL Calculator
Calculate LDL cholesterol
Molar Mass Calculator
Calculate molar mass
Growth & Wellness
Medication & Safety
Dosage Calculator
Calculate medication dosage
Standard Drink Calculator
Standard drink units
Caffeine Half-Life Calculator
Caffeine metabolism calculator
Infant Dosage Calculator
Calculate safe Tylenol and Motrin dosage for infants
Dog Gabapentin Dosage Calculator
Calculate gabapentin dosage for dogs
Baby Health
Nutrition Charts
High-Fiber Foods Chart
Chart of high-fiber foods for digestive health
High Calcium Foods Chart
Chart of calcium-rich foods for bone health
Potassium-Rich Foods Chart
Chart of potassium-rich foods for heart health
Vitamin D Foods Chart
Chart of vitamin D rich foods for health
Diabetic GI Chart
Glycemic index chart for diabetic meal planning
Symptom Checkers
Pain Assessment
Body Charts & Reflexology
Lab Values & Medical Tests
Lab Values Reference Chart
Complete reference chart for medical lab values
Lipase & Troponin Levels Chart
Normal ranges for lipase and troponin levels
Miscarriage Risk Calculator
Assess miscarriage risk by pregnancy week
Peptide Calculator
Calculate peptide reconstitution and dosage
Running & Fitness
Parenting & Childcare
Lifestyle & Protection
Frequently Asked Questions
Are these health calculators free to use?
Yes, all our health calculators and tools are completely free to use. No registration or payment required.
Are the calculators medically accurate?
Our calculators use scientifically-validated formulas and standards from organizations like WHO. However, they are for informational purposes only and should not replace professional medical advice.
Can I use these calculators on mobile?
Yes! All our tools are fully responsive and work perfectly on smartphones, tablets, and desktop computers.