It is calculated by dividing a person's weight in kg by their height in meters squared, and a BMI of between 19 and 25 is considered healthy.

它的计算方法是用一个人的体重（公斤）除以身高（米）的平方，BMI 在19到25之间被认为是健康的。

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People were also asked how often they exercised, and provided weight and height so that body mass index, or BMI, could be calculated.

参与者还被询问多长时间做一次锻炼，并提供了体重和身高数据，用来计算出他们的体质指数（BMI）。

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As you can see, because the heights of the bars are calculated with respect to the highest value, the bars do not exceed 1000 pixels in height and do not end up being plotted too high.

可以看出，因为条的高度是相对于最大值计算得到的，条的高度不会超过1000像素，因此图不会画得太高。

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They measured height, weight and body mass index - calculated by dividing weight in kilograms by the square of your height in metres.

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Body Mass Index is calculated by dividing your weight in kilograms by the square of your height in metres.

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