Free tools
Quick calculators
Two free tools to give you a rough baseline before a proper conversation. Both run entirely in your browser — nothing you enter is sent to us or stored anywhere.
Takes 20 seconds
BMI Calculator
Work out your body mass index and see the healthy weight range for your height. Includes an honest account of what BMI can and can't tell you.
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Takes about a minute
Daily Calorie Needs
Estimate your resting and total daily energy needs using the Mifflin-St Jeor equation, with a starting macronutrient split.
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