The Body Mass Index (BMI) Calculator Tool uses your height in centimetres (CM) and your weight in Kilograms (KG) to determine what your BMI index is. Once you have calculated your BMI see the chart below to work out where you appear on the BMI Chart. Remember the BMI index is a general chart.

Quick Conversions to help you work out your weight and height:

1 stone = 6.5kg approx (so if you weight 9st thats 58kg approx)

1ft = 30cm approx (so if you are 6ft tall that would be 180cm approx)

1 inch = 2.5cm approx (so if you are 5 ft 7inches tall that would be 168cm approx)

10 pounds = 4.5kg approx (so if you weight 200 pounds that would be 90kg approx)