Here are the BMI standards as set by the World Heath Organization:
BMI | Category |
---|---|
< 18.5 | Underweight |
18.5 - 25 | Healthy Weight |
25 - 30 | Overweight |
> 30 | Obese |
In the United States, the average BMI for adults is 28.8.
Metric
BMI = kg / m2
Imperial
BMI = (lbs * 0.45359237) / (inches * 0.0254)2
Simplified
BMI = 703 * lbs / inches2
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.
Age | Male | Female |
---|---|---|
18 | 22.3% | 33.1% |
19 | 22.6% | 33.4% |
20 | 22.8% | 33.6% |
21 | 23.0% | 33.8% |
22 | 23.3% | 34.1% |
23 | 23.5% | 34.3% |
24 | 23.7% | 34.5% |
25 | 24.0% | 34.8% |
26 | 24.2% | 35.0% |
27 | 24.4% | 35.2% |
28 | 24.6% | 35.4% |
29 | 24.9% | 35.7% |
30 | 25.1% | 35.9% |
Age | Male | Female |
---|---|---|
31 | 25.3% | 36.1% |
32 | 25.6% | 36.4% |
33 | 25.8% | 36.6% |
34 | 26.0% | 36.8% |
35 | 26.3% | 37.1% |
36 | 26.5% | 37.3% |
37 | 26.7% | 37.5% |
38 | 26.9% | 37.7% |
39 | 27.2% | 38.0% |
40 | 27.4% | 38.2% |
41 | 27.6% | 38.4% |
42 | 27.9% | 38.7% |
43 | 28.1% | 38.9% |
Age | Male | Female |
---|---|---|
44 | 28.3% | 39.1% |
45 | 28.6% | 39.4% |
46 | 28.8% | 39.6% |
47 | 29.0% | 39.8% |
48 | 29.2% | 40.0% |
49 | 29.5% | 40.3% |
50 | 29.7% | 40.5% |
51 | 29.9% | 40.7% |
52 | 30.2% | 41.0% |
53 | 30.4% | 41.2% |
54 | 30.6% | 41.4% |
55 | 30.9% | 41.7% |