BMI for ages 75 to 79
If you are aged 75 to 79, the adult BMI bands apply to you. Here they are worked through for 5 ft 10 in and 183 lb.
How it works
BMI is your weight in kilograms divided by your height in meters squared. Enter pounds and inches and the page converts them for you. Here 183 lb is 83.0 kg and the height is 177.8 cm, which is 1.7780 meters.
Worked example
Example: 5 ft 10 in and 183 lb converts to 1.7780 m and 83.0 kg. Then 83.0 ÷ (1.7780 × 1.7780) = 83.0 ÷ 3.161 = 26.3, which is overweight.
Common questions
Is BMI accurate for muscular people?
It can read high for someone with a lot of muscle, because muscle weighs more than the same volume of fat. A body fat measurement gives a better picture in that case. At 183 lb, the BMI of 26.3 says nothing about how much of that weight is muscle.
Does the adult BMI formula work for children and teens?
No. Children and teens are compared with others of the same age and sex. They need a percentile-based calculator instead of the adult bands. This page uses age 77 as its example, and the adult bands apply from age 20.
Does age or sex change the adult BMI result?
The number itself does not change. The formula uses only height and weight. Some health bodies suggest different cut points for some groups. Ask your doctor what suits you. At age 77 the result for 5 ft 10 in and 183 lb is 26.3, the same as at any other adult age.
How is the 129 to 174 lb range worked out?
It is the weight that gives a BMI of 18.5 and the weight that gives 24.9 at 5 ft 10 in. The calculator reverses the formula for you. At 5 ft 10 in that range is 45 lb wide.
What BMI range counts as a healthy weight for adults?
Under 18.5 is underweight. 18.5 to 24.9 is a healthy weight. 25 to 29.9 is overweight. 30 or more is obesity. At 5 ft 10 in, a BMI of 18.5 to 24.9 works out to 129 to 174 lb.