WHR may be a better predictor of heart attacks and other health risks than BMI, which does not take fat distribution into consideration. A study of health records for 1, people in 11 countries, published in , showed that those with a higher WHR also have a greater risk of medical and surgical complications relating to colorectal surgery.
Waist-to-height ratio WtHR is another tool that might predict the risk of heart disease , diabetes, and overall mortality more effectively than BMI. A person whose waist measurement is less than half their height has a lower risk of a number of life-threatening health complications. To calculate the WtHR, a person should divide their waist size by their height. If the answer is 0. The authors also cited findings from another study — involving statistics for around , people from different ethnic groups — which concluded that WHtR is better than BMI at predicting heart attacks, strokes , diabetes, and hypertension.
The Centers for Disease Control and Prevention CDC note that a man with a waist size of 40 inches or above, or a woman with a waist size of 35 inches or above has a higher risk than other people of:. Essential fat : A person needs essential fat to survive. It plays a role in a wide range of bodily functions. For men, it is healthy to have 2 to 4 percent of their body composition as essential fat. Storage fat : Fatty tissue protects the internal organs in the chest and abdomen, and the body can use it if necessary for energy.
BMI, in contrast, does not distinguish between fat and muscle mass. The most common ways of measuring body fat percentage is to use a skinfold measurement, which uses special calipers to pinch the skin. The health professional will measure tissue on the thigh, abdomen, chest for men or upper arm for women. The techniques provide an accurate reading within around 3. Other techniques include :. None of these can give a percent accurate reading, but the estimates are close enough to give a reasonable assessment.
In this video by What Matters Nutrition , David Brewer, a registered dietician, takes a look at the question of ideal weight, discussing many of the points raised above. Combining them may be the best way to get an accurate idea of whether you should consider taking action or not. Warning: It is necessary to enable JavaScript for full calculator functionality. Here are some instructions for how to enable JavaScript in your browser. Popup calculator Copy a link to this page Print this page Email a link to this page Scroll up to form What does this mean?
Quick Search:. Kilograms to pounds kg. Round decimal places : 1 2 3 4 5. Use this calculator tool to convert kg to pounds and pounds to kg. A reference table is also available for common conversions involving these units of weight. Like this? The system came into official use across the British Empire. In , a fire destroyed the Houses of Parliament in London, where the standards for these weights were kept. A standards bureau was set up with prototypes for the imperial system at that time.
Metric weights have a very different history. Metric weights, the gram, the kilogram, were developed by scientists in 18th century France. In , the French parliament imposed the use of the metric system on the country, and it is now used in Continental Europe and many other parts of the world.
The metric system was not particularly popular in revolutionary France, and Emperor Napoleon, who came just after the Revolution, abolished it. But, when Napoleon lost power, the system was reinstated. The kilogram is the weight of one liter of water.
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