Two of the most established ways of determining your ideal weight are calculating your body mass index, or BMI, and finding your hip-waist ratio, reports Medical News Today. Online BMI calculators allow you to enter your imperial height and weight, but to calculate BMI yourself, find your height and weight in meters and kilograms. Multiply your height by itself. Then, divide your weight by this total. A figure between 18.5 and 24.9 is ideal, advises the Canadian Diabetes Association.
Age, sex, muscle-fat ratio, height and bone density affect your ideal weight. The BMI calculation works for average people, but is inaccurate for certain groups, including athletes and anyone with severe osteoporosis, because it does not take into account body measurements or bone density, according to MNT.
To calculate waist-hip ratio, divide your waist measurement at the narrowest point in inches by the measurement for the widest part of your hips. For men, a reading of 0.9 or below indicates a low risk of cardiovascular issues, 0.9 to 0.99 indicates a moderate risk, and anything over 1 is a high risk, reports MNT. For women, 0.8 or lower indicates a low risk of cardiovascular issues, 0.8 to 0.89 indicates a moderate risk, and 0.9 or over shows a high risk.