Ideal weight at 6 ft 4 in, female
Ideal weight formulas estimate a weight range from height and sex. This page applies them to a woman who is 6 ft 4 in tall.
How it works
Every method starts from a base weight at 60 inches and adds kilograms for each extra inch. The bases and the steps differ by sex and by formula. You get three estimates and a range. For a woman at 6 ft 4 in the Miller step is 1.36 kg per inch.
Worked example
Take a woman who is 6 ft 4 in tall. That is 16 inches over 60. Devine: 45.5 + 2.3 × 16 = 82.3 kg, or 181 lb. Robinson: 49 + 1.7 × 16 = 76.2 kg, or 168 lb. Miller: 53.1 + 1.36 × 16 = 74.86 kg, or 165 lb. The range is 165 to 181 lb.
Common questions
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 woman at 6 ft 4 in the formulas add 16 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 woman at 6 ft 4 in a healthy BMI is 152 to 205 lb, against 165 to 181 lb here.
Which ideal weight formula is best?
None is better than the others. They were built for different purposes. Showing all three as a range is more honest than picking one. For a woman at 6 ft 4 in the three results are 181 lb, 168 lb and 165 lb.
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 woman at 6 ft 4 in the gap between the lowest and highest is 16 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 woman at 6 ft 4 in the range of 165 to 181 lb is a starting point, not a limit.