BMI of a 5′ 1″, 122 Pound Person

What is the BMI of a man or woman who weighs 122 pounds and is 5 foot 1 inches tall?
ft
in
lbs
BMI = 23.05
Note: BMI is the same for men and women.

Am I Overweight?

Here are the BMI standards as set by the World Heath Organization:

BMICategory
< 18.5Underweight
18.5 - 25Healthy Weight
25 - 30Overweight
> 30Obese

In the United States, the average BMI for adults is 28.8.

BMI Formula

Metric
BMI = kg / m2

Imperial
BMI = (lbs * 0.45359237) / (inches * 0.0254)2

Simplified
BMI = 703 * lbs / inches2

Is BMI Worth Using?

Body Mass Index is a very simplistic method of determining whether a person is overweight. It does not taken into account a person's frame, gender, or muscularity. Furthermore, at least one study has suggested that slightly overweight people may live longer than people in the "normal" range.

Nevertheless, BMI is highly correlated with body fat % and is a decent enough yardstick of a healthy weight.

Body fat estimates for a person with a BMI of 23.05
These are rough estimates based on a formula, and do not reflect differences in muscularity, body types, etc...
Age Male Female
18 15.6% 26.4%
19 15.8% 26.6%
20 16.1% 26.9%
21 16.3% 27.1%
22 16.5% 27.3%
23 16.8% 27.6%
24 17.0% 27.8%
25 17.2% 28.0%
26 17.4% 28.2%
27 17.7% 28.5%
Age Male Female
28 17.9% 28.7%
29 18.1% 28.9%
30 18.4% 29.2%
31 18.6% 29.4%
32 18.8% 29.6%
33 19.1% 29.9%
34 19.3% 30.1%
35 19.5% 30.3%
36 19.7% 30.5%
37 20.0% 30.8%
Age Male Female
38 20.2% 31.0%
39 20.4% 31.2%
40 20.7% 31.5%
41 20.9% 31.7%
42 21.1% 31.9%
43 21.4% 32.2%
44 21.6% 32.4%
45 21.8% 32.6%
46 22.0% 32.8%
47 22.3% 33.1%
Age Male Female
48 22.5% 33.3%
49 22.7% 33.5%
50 23.0% 33.8%
51 23.2% 34.0%
52 23.4% 34.2%
53 23.7% 34.5%
54 23.9% 34.7%
55 24.1% 34.9%