Tools
Free calculators and timers, running entirely in your browser, to help you make decisions about your sports physiotherapy and general health. Nothing you enter is saved or sent to a server.
Body Composition
BMI (Body Mass Index) Calculator
Calculate your Body Mass Index (BMI) from your height and weight.
Use Tool →Body Fat Percentage Calculator (US Navy Method)
Estimate your body fat percentage from your neck, waist (and, for women, hip) measurements.
Use Tool →Waist-to-Hip Ratio Calculator
See your risk range based on World Health Organization waist-hip ratio references.
Use Tool →Ideal Weight Calculator
Calculate a reference ideal weight range for your height using the Devine formula.
Use Tool →Energy & Nutrition
Daily Calorie Needs Calculator (TDEE)
Calculate your daily calorie needs (TDEE) based on your age, height, weight and activity level.
Use Tool →Exercise Calorie Burn Calculator
Estimate calories burned based on activity type, your weight and duration.
Use Tool →Daily Water Intake Calculator
Estimate your daily water needs (litres) based on your weight and exercise duration.
Use Tool →Cardio & Training
Target Heart Rate Calculator (Karvonen)
Calculate your training heart-rate zones based on your age and resting heart rate.
Use Tool →Maximum Heart Rate Calculator
Estimate your maximum heart rate using two different formulas based on your age.
Use Tool →Interval (Tabata) Training Timer
Set your work/rest durations and round count, and follow your interval workout with audio cues.
Use Tool →Stretch Timer
Set a duration and repeat count for your stretches, and follow along with an audio-cued timer.
Use Tool →These tools are for general information and awareness only; they do not constitute medical advice or diagnosis.