A healthy weight-to-height chart is most often related to the body mass index (BMI) number. The BMI number relates a person's weight and height to measure the amount of body fat. Two sources that offer weight to height charts that show if a person's weight is healthy are the National Heart, Lung and Blood Institute (NHLBI) and the Rush University Medical Center.
A BMI number that ranges between 18.5 and 24.9 is considered a healthy or normal weight for people, according to the United States Centers for Disease Control and Prevention. There are other BMI ranges given for overweight and obese based on a person's weight and height. For example, a person with a BMI of 30 is considered obese.
The charts provided give weight and height data and information on BMI. For example, a person, who weighs 140 lbs. and is 6 feet tall, has a normal or healthy weight, according to both these charts because the BMI is 19.