BMI calculator
Body mass index is the first number a prescriber looks at. Work out yours in seconds, see the healthy weight range for your height, and find out whether you meet the UK threshold for prescription weight loss treatment.
Height
Weight
People from these backgrounds develop weight-related health risks at a lower BMI, so UK guidance applies lower treatment thresholds.
Enter your height and weight to see your BMI.
Other free tools
Calorie calculatorWork out your daily calories for steady, sustainable loss.Food & calorie diaryLog meals and track calories and macros against your target.Ideal weightSee a healthy weight range for your height and frame.Body fat estimatorEstimate body fat percentage from simple measurements.Water intakeHow much to drink daily, important on GLP-1 treatment.
Numbers pointing towards treatment?
See which licensed medications you may be eligible for.