Ideal weight at 5 ft 5 in, male
This calculator gives an ideal weight range, not a single target. The worked example is a man, 5 ft 5 in tall.
How it works
For males, Devine is 50 kg plus 2.3 kg per inch over 60. For females, it is 45.5 kg plus 2.3 kg per inch. Robinson and Miller use their own bases and steps. The page runs all three. For a man at 5 ft 5 in the height over 60 is 5 inches.
Worked example
Start with the height. 5 ft 5 in is 5 inches over 60. For a man, 50 + 2.3 × 5 = 61.5 kg is the Devine result. 52 + 1.9 × 5 = 61.5 kg is the Robinson result. 56.2 + 1.41 × 5 = 63.25 kg is the Miller result. Those are 136 lb, 136 lb and 139 lb. The range is 136 to 139 lb.
Common questions
Why do the formulas give different answers?
Each uses its own base weight and its own amount per inch. The gap grows as height moves away from 5 feet. For a man at 5 ft 5 in the gap between the lowest and highest is 3 lb.
Do these formulas account for muscle or frame size?
No. They use only height and sex. Someone with a large frame or a lot of muscle can be healthy well above the range. For a man at 5 ft 5 in the range of 136 to 139 lb is a starting point, not a limit.
Is 136 to 139 lb a target I must hit?
No. It is a starting reference for a man at 5 ft 5 in. Your doctor can tell you what weight suits your own health. For a man at 5 ft 5 in the range spans 3 lb.
What if I am under 5 feet tall?
The formulas were written for heights of 5 feet and over. Below that the calculator uses the base weight. Treat the result as rough. For a man at 5 ft 5 in the formulas add 5 inches above the 60 inch base.
How does this compare with BMI?
A healthy BMI range also gives a weight range for your height. The two often overlap but they are not the same, because BMI ignores sex while these formulas use it. For a man at 5 ft 5 in a healthy BMI is 111 to 150 lb, against 136 to 139 lb here.