Body Composition Calculator

  • Wilks Calculator
    Calculate your Wilks score from bodyweight and total lifted (kg). Uses the original Wilks coefficient formula for fair powerlifting comparison.
  • Ideal Body Weight at BMI 22 Calculator
    Calculate your ideal (standard) body weight at a BMI of 22 from your height. BMI 22 is the Japanese standard-weight target linked to lowest disease risk.
  • Weight Loss Calculator
    Estimate how fast you'll lose weight from your daily calorie deficit. Enter your TDEE and intake to get kg and lb lost per week and month.
  • Pet BCS (Body Condition Score) Calculator
    Map your dog or cat's body condition to a 5-point BCS, obesity level and approximate body-fat range. Based on Japan's Ministry of the Environment pet guide.
  • Ideal and Beauty Weight Table Calculator
    Calculate your ideal weight (BMI 22) and beauty weight (BMI 20) from your height, plus a full reference table from 140 to 200 cm.
  • Ideal Body Weight Calculator
    Calculate your ideal body weight based on height and gender. Enter your height in centimeters or inches and select male or female for personalized results with this accurate ideal body weight calculator.
  • Body Surface Area Calculator
    Calculate Body Surface Area (BSA) in m² using the Mosteller and Du Bois formulas from your height (cm) and weight (kg). Fast, accurate, free.
  • Body Surface Area (BSA) Calculator
    Calculate body surface area (BSA) in m2 from height and weight using the Du Bois, Shintani, and Fujimoto regression formulas. Supports cm/m/inch and kg/lb.
  • Body Frame Size Calculator
    Find your body frame size (small, medium or large) from your height and wrist circumference using the classic height-to-wrist ratio method.
  • Body Fat Mass & Fat-Free Mass Calculator
    Calculate your fat mass and fat-free (lean) mass from your body weight and body fat percentage. Works in kg or lb with instant, accurate results.
  • Body Fat Percentage Calculator (BMI Method)
    Estimate your body fat percentage from BMI, age and sex using the Deurenberg equation. Free, instant calculator with fat mass and lean mass results.
  • BMI Weight Loss Calculator
    Calculate your current BMI, target weight for a goal BMI, and exactly how many kilograms you need to lose to get there.
  • BMI Prime Calculator
    Calculate your BMI Prime, the ratio of your BMI to the upper normal limit of 25. Enter weight and height to see your number instantly.
  • Reverse BMI Calculator
    Calculate your ideal weight with this Reverse BMI Calculator. Input your height and desired BMI to determine the target weight for optimal health. Personalize your fitness goals now!
  • Blood Volume Calculator
    Estimate total blood volume from body weight using mL/kg factors for adult males, females, children and infants. Get results in mL and liters.
  • Height in Inches Calculator
    Convert your height from feet and inches into total inches instantly. Enter feet and inches to get the total height in inches plus centimeters.
  • Birth Weight Percentile Calculator
    Calculate a newborn's birth weight percentile and z-score for gestational age and sex using normal-distribution reference values.
  • Child Height Prediction Calculator
    Predict a child's adult height from the parents' heights using the mid-parental (target-height) formula. Enter father and mother height in cm.
  • Bikini Size Calculator
    Estimate your bikini and bra size from underbust and bust measurements in cm. Get your band number and cup letter instantly with our free calculator.
  • Bedridden Patient Height Calculator
    Estimate height for bedridden or non-ambulatory patients from knee height and age using the Chumlea equations. Works for males and females.
  • Healthy Weight Range Calculator
    Find your healthy weight range from height using the BMI 18.5–24.9 band. Get the low and high weight limits in kilograms instantly.
  • Baby Percentile Calculator
    Calculate your baby's growth percentile (weight, length, head circumference) from LMS reference values using the WHO/CDC Box-Cox z-score method.
  • Height Percentile Calculator
    Find your height percentile from a normal distribution. Enter height, gender or custom mean/SD to see what % of people you are taller than. US defaults.
  • Sock Size Calculator
    Convert your US shoe size to the right sock size. Enter men's or women's shoe size to get the matching small/medium/large sock range.

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