to start your weight loss journey

BMI Calculator

Body mass index (BMI) is an approximate measure of body composition based on a person's weight and height. It is a relatively simple way to understand if your weight lies within a healthy range. Use our handy BMI calculator below to check you BMI.

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  • Why is BMI important?

    The Body Mass Index (BMI) is a simple way to understand if your weight is suitable in relation to your height. BMI breaks down into several categories and is a very quick way to gauge if your current weight poses a risk to your health. In general, the higher your BMI, the greater your risk of a range of medical problems.

  • How is BMI calculated?

    Body Mass Index (BMI) is calculated according to your weight divided by your height, squared. The LighterLife BMI calculator is intended for adult use only. BMI only provides a general indication of the appropriateness of your weight in relation to your height. Please also note that BMI may not provide an appropriate means to gauge your weight if you are very muscular or an athlete. In these instances you may have a higher BMI but have a healthy proportion of body fat.

  • How LighterLife works

    Losing weight with LighterLife is a great choice to make. Why? Because our programme has been developed by experts with many years of experience of working with people with weight concerns. LighterLife is much more than just a diet or weight loss programme. LighterLife helps people change their lives, because we know the real secret to life-changing weight loss is all in the mind. Thinking about what you put into your mouth isn’t enough. What matters is what goes on in your head.