Free Health Tools
49+ Health Calculators & Tools
Free, instant health calculators backed by medical research. No signup required. Calculate BMI, calories, heart risk, pregnancy dates, and more.
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Body & Fitness Calculators
Calculate BMI, BMR, TDEE, body fat percentage, ideal weight, and more. Free, instant results with medical references.
Nutrition Calculators
Calculate your daily protein, macro, fiber, and calorie needs. Personalized nutrition guidance based on your goals.
Age & Life Metrics
Estimate your biological age, metabolic age, healthy weight by age, and child growth percentiles.
Heart Health Tools
Check your blood pressure category, heart risk score, cholesterol ratio, diabetes risk, HbA1c levels, and kidney function.
Medical Record Tools
Track medications, calculate prescription refills, check vaccination schedules, and prepare for doctor visits and hospital stays.
Mental Health Assessments
Self-assessment tools for depression (PHQ-9), anxiety (GAD-7), sleep quality, and burnout. Clinically validated screening instruments.
Pregnancy & Fertility Tools
Calculate your due date, ovulation day, fertility window, and track baby growth. Evidence-based pregnancy planning tools.
Lab Test Tools
Interpret your lab results with normal ranges for CBC, metabolic panels, lipid panels, thyroid, liver, and kidney tests.
Lifestyle & Wellness
Assess screen time risks, sitting time impact, track hydration, and convert steps to calories burned.
Most Popular Tools
BMI Calculator
Calculate your Body Mass Index (BMI) based on height and weight. Understand what your BMI means for your health with WHO categories.
Use ToolBMR Calculator
Calculate your Basal Metabolic Rate (BMR) using Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas. Find out how many calories your body burns at rest.
Use ToolTDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) based on your BMR and activity level. Know exactly how many calories you burn per day.
Use ToolIdeal Weight Calculator
Find your ideal body weight using Robinson, Miller, Devine, and Hamwi formulas. Compare results across multiple scientific methods.
Use ToolBody Fat Calculator
Estimate your body fat percentage using the U.S. Navy method. Get your fat mass, lean mass, and body fat category based on ACE guidelines.
Use ToolLean Body Mass Calculator
Calculate your lean body mass using Boer, James, and Hume formulas. Understand your fat-free weight and body composition.
Use ToolFFMI Calculator
Calculate your Fat-Free Mass Index (FFMI) to evaluate your muscularity relative to your height. Normalized FFMI included.
Use ToolCalorie Needs Calculator
Calculate your daily calorie needs for weight loss, maintenance, or gain. Personalized calorie targets based on your TDEE and goals.
Use ToolWant to understand your full health picture?
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