BMI is calculated by taking your weight in kilograms and dividing it by the square of your height in meters. For example, if your height is 1.8 meters, the divisor of the calculation will be (1.8 * 1.8) = 3.24. If your weight is 70 kilograms, then your BMI is 21.6 (70 / 3.24).
iPhone and iPod Touch more details - iPad... coming soon!
The Mac BMI Calculator
The calculator can work in three different modes:
Metric: The input height is in meters (m) and the weight in kilograms (kg).
Imperial: The input height is feet (ft) and inches (in) and the weight is in stones (st) and pounds (lb). [Useful for the UK.]
Pounds: The input height is feet (ft) and inches (in) and the weight is in pounds (lb). [Useful for the US.]
- Select the type of calculator required (Metric, Imperial or Pounds).
- Enter your height and weight.
- Press 'Calculate' (or press 'Return')
- The BMI for the entered height and weight will be returned. In addition, the weight and height will be converted in to the other units which can be accessed by clicking on the tabs.
The results fall in to four main categories: Below 20, between 20 and 25, between 25 and 30, and above 30.
Data suggests that people with BMIs between 19 and 22 live longest and death rates are noticeably higher for people with indexes 25 and above. However, these figures should be viewed with caution as it is possible to have a high BMI and a low body fat percentage (for example, look at rowers, who typically have BMIs above 25). The BMI is only one measure of your health and body fat percentage, blood pressure, resting heart rate, cholesterol and other measurements are at least as important as BMI.
If the results suggests you are overweight (or under-height for your weight!) please consult your physician before starting any exercise or diets.
bodyCal, bmiCal and bmiPounds
Like the BMI Calculator bodyCal can calculate your BMI using height in meters, or feet and inches, and your weight in kilograms (kilos, kg), or pounds, or stones and pounds (imperial). And it can also calculate your basal metabolic (BMR) rate.
bmiCal can also calculate your BMI using height in meters, or feet and inches, and your weight in kilograms (kilos, kg), or pounds, or stones and pounds (imperial). However, it does not calculate your BMR.
bmiPounds - FREE
bmiPounds is a free body mass index calcultor (BMI) that works with feet and inches for height, and pounds for weight. So, no metric calculations, and no BMR calcultions.