A few ways to calculate ideal body weight include using tools such as the body mass index and waist-hip ratio, according to Medical News Today. Another very efficient way to figure out ideal body weight is to calculate body fat percentage.
The body mass index is one of the most commonly used tools to calculate ideal body weight, reports Medical News Today. The body mass index is calculated by taking a person's weight in kilograms and dividing it by the square of the height in meters. An ideal body mass index is considered to be between 18.5 and 25. Some medical professionals, however, believe that this index can be misleading because it does not take into account a person's body type and muscle-to-fat ratio.
The waist-hip ratio takes more into account a person's body type. It has been shown to be a better predictor of health problems associated with obesity than the body mass index, says Medical News Today. The waist-hip ratio is calculated by dividing waist circumference by hip circumference, and ideal for men is lower than 0.9 and for nonpregnant women, lower than 0.8.
Many experts believe that calculating body fat percentage is the best way to figure out a person's ideal body and level of fitness, states Medical News Today. It is calculated by dividing the weight of a person's fat by his total weight. The deal body fat percentage for men is lower than 17 percent and for women, lower than 24 percent.