Body Metrics & Composition
Scientifically validated formulas for BMI, body fat percentage, lean body mass, body surface area, and anthropometric shape indices.
BMI Calculator
Calculate Body Mass Index according to World Health Organization criteria
BMI Prime Calculator
Ratio of personal BMI to the international upper normal threshold (25.0)
BMI Prime
Quick evaluation of your Body Mass Index normalized to 25.0 kg/m²
Ponderal Index Calculator
Volumetric corpulence index proportional to stature cubed
Healthy Weight Calculator
Calculate evidence-based healthy weight boundaries for your exact height
Ideal Weight Calculator
Comparative analysis across Devine, Robinson, Miller, and Hamwi equations
Body Fat Calculator
Estimate body fat percentage using the US Navy Circumference Method
Lean Body Mass Calculator
Total mass of muscle, bone, organs, and body water excluding adipose tissue
Fat-Free Mass Calculator
Calculate fat-free mass and evaluate cellular metabolically active tissue
Body Surface Area Calculator
Calculate total external surface area of the human body using Mosteller and Du Bois equations
Waist-to-Height Ratio Calculator
Evaluate central abdominal adiposity and cardiometabolic risk
Waist-to-Hip Ratio Calculator
Assess body fat distribution pattern (android vs gynoid)
Waist Circumference Calculator
Classify abdominal obesity risk using clinical guidelines (NCEP / ATP III)
Hip-to-Waist Ratio Calculator
Inverse calculation of waist-to-hip proportions
Body Roundness Index Calculator
Geometric eccentricity model predicting visceral adiposity and all-cause mortality
Body Shape Calculator
Classify female and male anthropometric silhouettes (Hourglass, Rectangle, Triangle, Inverted Triangle, Apple)
FFMI Calculator
Fat-Free Mass Index & Normalized Natural Muscularity Potential
Relative Fat Mass Calculator
Simple DEXA-validated estimator of body fat percentage using height and waist
Body Adiposity Index Calculator
Body fat percentage estimation without requiring body weight
Conicity Index Calculator
Assess central abdominal fat distribution using waist, weight, and height
Adjusted Body Weight Calculator
Calculate adjusted body weight (AjBW) for nutritional energy estimations in overweight individuals
Percent Weight Change Calculator
Track percentage weight loss or gain with clinical timeframe evaluation
Skeletal Muscle Mass Calculator
Estimate skeletal muscle mass (SMM) using anthropometric prediction
Fat Mass Calculator
Calculate total adipose fat mass and lean mass in kilograms and pounds