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Weight & body

BMI, body fat, ideal weight and energy expenditure, with the formula used stated explicitly. 21 tools, including Alcohol units calculator, Am I Overweight? Calculator, Am I Underweight? Calculator and Biological Age Calculator. All free, with no account and nothing to install.

Alcohol units calculatorWork out the alcohol units and grams in a drink from its volume and strength.Am I Overweight? CalculatorFind out if you're overweight from your BMI, with your healthy weight range and kg to reach it.Am I Underweight? CalculatorFind out if you're underweight from your BMI, with your healthy weight range and kg to reach it.Biological Age CalculatorEstimate your biological age from lifestyle factors — fitness, diet, sleep, stress and more. Educational, not medical.BMI calculatorCompute your Body Mass Index and weight category.Body fat calculatorEstimate your body fat percentage (U.S. Navy method).Body Frame Size CalculatorSmall, medium or large frame from your height-to-wrist ratio, with a frame-adjusted weight range.Bra Size CalculatorBand and cup size (US, UK and EU) from your underbust and bust measurements.Child BMI Percentile CalculatorBMI-for-age percentile on the CDC reference, ages 2-20 — the percentile, not the BMI, is what counts for a child.Adult height predictorPredict a child's adult height from the parents' heights.Height Percentile CalculatorWhere your height sits against the US adult reference, with the z-score and standard-deviation band.Ideal weight calculatorEstimate your ideal body weight (Devine formula).Keto CalculatorCompute your keto macros (fat, protein, net carbs) from BMR/TDEE and your keto diet type.Lean body mass calculatorEstimate your lean body mass and fat mass from weight, height and sex.One-Mile Walk Test Calculator (1 mile = 1.6 km, Rockport)Estimate your VO₂max and cardio-fitness rating from the Rockport one-mile walk test. Enter the distance in miles or kilometres (1 mile = 1.609344 km), your weight in kg or lb, the walk time and your ending heart rate, and read your speed in both mph and km/h.Standard Drink CalculatorConvert any drink into standard drinks and grams of pure alcohol, using the US, UK, Australian, Canadian or WHO definition.Target weight for a BMI calculatorFind the body weight that matches a target BMI for your height.Daily calorie calculator (TDEE)Estimate your daily calorie needs to maintain, lose or gain weight.Waist-to-height ratio calculatorCompute your waist-to-height ratio and see the associated health category.Waist-to-hip ratio calculatorCompute your waist-to-hip ratio against the WHO cut-off, and your waist measurement against the WHO waist thresholds.Weekly weight-loss from calorie deficitConvert a daily calorie deficit into expected weekly and monthly weight loss.

Health calculators