BMI Calculator

You can easily check your BMI using our tool below. Then based on your BMI you can set yourself a realistic weight loss goal to work towards.

Simply key in your details and let the BMI calculator work its magic.
(Don’t worry, we don’t keep this personal information).

Tell us your weight

Change Kg/Stones

Tell us your height

Change Meters/Feet
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Click here to read more about how we calculate your BMI

Underweight

Your Body Mass Index is . This is considered underweight

Healthy Weight

Your Body Mass Index is . You are a healthy weight for your height.

Overweight

Your Body Mass Index is . This is considered overweight

Obese

Your Body Mass Index is . This is considered obese

18.5 25 30 UNDERWEIGHT HEALTHY WEIGHT OVERWEIGHT OBESE
You are underweight and you should look to gain weight to put you in the middle of the healthy weight range. Being underweight can damage your health and contribute to a weakened immune system, fragile bones and lack of energy. We suggest you visit your GP to get some help and advice about this.
Your BMI is in the normal category for adults of your height. It is important to maintain a healthy body weight, as it can decrease the risk of developing certain conditions associated with being overweight. It is still important to eat a healthy, balanced diet and exercise regularly if you want to maintain a healthy weight and feel your best. Well done, keep it up!
Your BMI is above the ideal range. Could you stretch yourself a little bit more to put you in the middle of the healthy weight range? Excess weight can put you at an increased risk of type 2 diabetes, heart disease or a stroke. It’s time to take action and we can help you with our simple SlimFast Plan. Let’s make it happen!
Being obese puts you at risk of health problems such as type 2 diabetes, heart disease or a stroke. Losing weight will bring along significant health improvements. We are here to help you achieve your weight loss goals with our simple SlimFast Plan. If you have more than 20% of your total body weight to lose please speak to your GP first.
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Click here to read more about how we calculate your BMI

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