BMI Chart
Find your height and weight on the chart logic below, or skip straight to the calculator for your exact number.
The standard adult BMI chart divides results into four bands: underweight below 18.5, healthy weight from 18.5 to 24.9, overweight from 25 to 29.9, and obesity at 30 or above. A 5 ft 10 in adult weighing 180 pounds lands at 25.8, just inside overweight; the healthy band at that height spans about 129 to 174 pounds.
The four BMI bands
Every BMI chart uses the same four adult bands. Underweight is anything below 18.5. Healthy weight runs from 18.5 to 24.9. Overweight covers 25 to 29.9. Obesity starts at 30 and is split into classes 1 (30 to 34.9), 2 (35 to 39.9), and 3 (40 and up).
These cutoffs are the same for adult men and women. Children and teenagers use a different system, BMI-for-age percentiles, because healthy BMI shifts as kids grow.
Reading the chart by example
Take 5 feet 10 inches and 180 pounds: the BMI is 25.8, which sits just inside the overweight band. Drop to 150 pounds at 5 feet 6 inches and you get 24.2, comfortably inside the healthy band.
The bands are wide on purpose. At 5 feet 10 inches the whole healthy band covers 129 to 174 pounds, a 45-pound span. Small day-to-day weight swings of a few pounds rarely move anyone across a boundary.
What the chart cannot tell you
A chart cannot see muscle. A lifter with heavy muscle mass can land in the overweight band with very low body fat. It also cannot see fat distribution, and belly fat carries more risk than fat elsewhere at the same BMI.
Treat the chart as a first screen. If your number surprises you, a body fat measurement or a clinician's review will tell you whether the number matters.
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BMI chart questions
What is the BMI chart range for healthy weight?
For adults 20 and older, the healthy weight band on the BMI chart runs from 18.5 to 24.9. Below 18.5 is underweight, 25 to 29.9 is overweight, and 30 or above is obesity.
Is the BMI chart the same for men and women?
Yes. The adult BMI bands are identical for men and women. The differences show up in body composition, not in the BMI cutoffs themselves.
Does the BMI chart work for kids?
No. Children and teens are measured against BMI-for-age percentiles for their sex, because healthy BMI changes as they grow. A fixed adult chart would misclassify most kids.