Body and Weight Calculators: BMI, Body Fat and More
These calculators give a picture of body size and shape. BMI compares weight with height, while waist measurements and body fat estimates add detail that BMI alone misses.
They are estimates based on published formulas, not a diagnosis. Speak to a GP if you are worried about your weight or health.
BMI CalculatorWork out body mass index in metric or stones and pounds.Ideal Weight CalculatorCompare four published ideal weight formulas with the healthy BMI range for your height.Body Fat CalculatorEstimate your body fat percentage from a tape measure using the US Navy method.Waist to Height and Hip Ratio CalculatorCheck whether your waist is under half your height, and add your hips for the waist to hip ratio.Body Surface Area CalculatorWork out body surface area in square metres with the Mosteller, Du Bois, Haycock and Gehan-George formulas.Smoking Cost CalculatorAdd up what cigarettes cost you a day, a month and a year, and how that grows over time.
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