Ideal weight at 5 ft 11 in, female
Three formulas give three answers, and the gap between them is your range. Here they are for a woman standing 5 ft 11 in.
How it works
Devine, Robinson and Miller each start from a base weight at 60 inches and add a set number of kilograms for every inch above 60. The page runs all three and shows the lowest and highest as your range. For a woman at 5 ft 11 in the Devine base is 45.5 kg.
Worked example
Take a woman who is 5 ft 11 in tall. That is 11 inches over 60. Devine: 45.5 + 2.3 × 11 = 70.8 kg, or 156 lb. Robinson: 49 + 1.7 × 11 = 67.7 kg, or 149 lb. Miller: 53.1 + 1.36 × 11 = 68.06 kg, or 150 lb. The range is 149 to 156 lb.
Common questions
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 5 ft 11 in a healthy BMI is 133 to 179 lb, against 149 to 156 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 5 ft 11 in the three results are 156 lb, 149 lb and 150 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 5 ft 11 in the gap between the lowest and highest is 7 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 5 ft 11 in the range of 149 to 156 lb is a starting point, not a limit.
Is 149 to 156 lb a target I must hit?
No. It is a starting reference for a woman at 5 ft 11 in. Your doctor can tell you what weight suits your own health. For a woman at 5 ft 11 in the range spans 7 lb.