BMI calculator

Enter your height in feet and inches and weight in pounds to calculate your body mass index (BMI).

Feet

Inches

Weight (lbs)

Your BMI

Height: 6'4" (76 inches)

Weight: 150 lbs

BMI: 18.3

According to the CDC, this would be considered underweight for all adults age 20 and older. A BMI is classified as underweight if it's under 18.5.

How this estimate works

This calculator uses the standard adult BMI formula for U.S. units: BMI = (weight in pounds ÷ height in inches²) × 703.06.

Adult BMI ranges and what they mean

For adults age 20 and older, BMI is grouped into standard categories based on height and weight. Standard BMI categories are underweight, healthy weight, overweight, and obesity.

Below 18.5: Underweight
18.5 to 24.9: Healthy weight
25.0 to 29.9: Overweight
30.0 or higher: Obesity

Underweight (below 18.5)

A BMI below 18.5 falls in the underweight range. This can sometimes be associated with inadequate nutrition, illness, or other health concerns.

Healthy weight (18.5 to 24.9)

A BMI from 18.5 to 24.9 is considered the healthy weight range for most adults. This range is commonly used as a general screening benchmark.

Overweight (25.0 to 29.9)

A BMI from 25.0 to 29.9 is considered overweight. This does not diagnose a disease by itself, but it can be a sign of higher risk for certain health problems.

Obesity (30.0 or higher)

A BMI of 30.0 or higher falls in the obesity range. Obesity is often divided into additional classes based on BMI level.

Important note about BMI

BMI is a screening metric and does not directly measure body fat, muscle mass, age, or sex, so results can be less representative for certain groups, including very muscular people, some older adults, and pregnant women.

Relevant HSA expenses

If you have an HSA, you may wonder whether weight loss programs, gym membership fees, or fitness trackers like Apple Watches are eligible expenses. Sometimes they can be, but eligibility often depends on medical necessity and plan rules vary. If you are using HSA funds, keep documentation that connects the expense to medical care and check with your plan administrator when in doubt.

BMI chart

	4'10"	4'11"	5'0"	5'1"	5'2"	5'3"	5'4"	5'5"	5'6"	5'7"	5'8"	5'9"	5'10"	5'11"	6'0"	6'1"	6'2"	6'3"	6'4"
90 lbs	18.8	18.2	17.6	17.0	16.5	15.9	15.4	15.0	14.5	14.1	13.7	13.3	12.9	12.6	12.2	11.9	11.6	11.2	11.0
95 lbs	19.9	19.2	18.6	17.9	17.4	16.8	16.3	15.8	15.3	14.9	14.4	14.0	13.6	13.2	12.9	12.5	12.2	11.9	11.6
100 lbs	20.9	20.2	19.5	18.9	18.3	17.7	17.2	16.6	16.1	15.7	15.2	14.8	14.3	13.9	13.6	13.2	12.8	12.5	12.2
105 lbs	21.9	21.2	20.5	19.8	19.2	18.6	18.0	17.5	16.9	16.4	16.0	15.5	15.1	14.6	14.2	13.9	13.5	13.1	12.8
110 lbs	23.0	22.2	21.5	20.8	20.1	19.5	18.9	18.3	17.8	17.2	16.7	16.2	15.8	15.3	14.9	14.5	14.1	13.7	13.4
115 lbs	24.0	23.2	22.5	21.7	21.0	20.4	19.7	19.1	18.6	18.0	17.5	17.0	16.5	16.0	15.6	15.2	14.8	14.4	14.0
120 lbs	25.1	24.2	23.4	22.7	21.9	21.3	20.6	20.0	19.4	18.8	18.2	17.7	17.2	16.7	16.3	15.8	15.4	15.0	14.6
125 lbs	26.1	25.2	24.4	23.6	22.9	22.1	21.5	20.8	20.2	19.6	19.0	18.5	17.9	17.4	17.0	16.5	16.0	15.6	15.2
130 lbs	27.2	26.3	25.4	24.6	23.8	23.0	22.3	21.6	21.0	20.4	19.8	19.2	18.7	18.1	17.6	17.2	16.7	16.2	15.8
135 lbs	28.2	27.3	26.4	25.5	24.7	23.9	23.2	22.5	21.8	21.1	20.5	19.9	19.4	18.8	18.3	17.8	17.3	16.9	16.4
140 lbs	29.3	28.3	27.3	26.5	25.6	24.8	24.0	23.3	22.6	21.9	21.3	20.7	20.1	19.5	19.0	18.5	18.0	17.5	17.0
145 lbs	30.3	29.3	28.3	27.4	26.5	25.7	24.9	24.1	23.4	22.7	22.0	21.4	20.8	20.2	19.7	19.1	18.6	18.1	17.6
150 lbs	31.3	30.3	29.3	28.3	27.4	26.6	25.7	25.0	24.2	23.5	22.8	22.2	21.5	20.9	20.3	19.8	19.3	18.7	18.3
155 lbs	32.4	31.3	30.3	29.3	28.3	27.5	26.6	25.8	25.0	24.3	23.6	22.9	22.2	21.6	21.0	20.4	19.9	19.4	18.9
160 lbs	33.4	32.3	31.2	30.2	29.3	28.3	27.5	26.6	25.8	25.1	24.3	23.6	23.0	22.3	21.7	21.1	20.5	20.0	19.5
165 lbs	34.5	33.3	32.2	31.2	30.2	29.2	28.3	27.5	26.6	25.8	25.1	24.4	23.7	23.0	22.4	21.8	21.2	20.6	20.1
170 lbs	35.5	34.3	33.2	32.1	31.1	30.1	29.2	28.3	27.4	26.6	25.8	25.1	24.4	23.7	23.1	22.4	21.8	21.2	20.7
175 lbs	36.6	35.3	34.2	33.1	32.0	31.0	30.0	29.1	28.2	27.4	26.6	25.8	25.1	24.4	23.7	23.1	22.5	21.9	21.3
180 lbs	37.6	36.4	35.2	34.0	32.9	31.9	30.9	30.0	29.1	28.2	27.4	26.6	25.8	25.1	24.4	23.7	23.1	22.5	21.9
185 lbs	38.7	37.4	36.1	35.0	33.8	32.8	31.8	30.8	29.9	29.0	28.1	27.3	26.5	25.8	25.1	24.4	23.8	23.1	22.5
190 lbs	39.7	38.4	37.1	35.9	34.8	33.7	32.6	31.6	30.7	29.8	28.9	28.1	27.3	26.5	25.8	25.1	24.4	23.7	23.1
195 lbs	40.8	39.4	38.1	36.8	35.7	34.5	33.5	32.4	31.5	30.5	29.6	28.8	28.0	27.2	26.4	25.7	25.0	24.4	23.7
200 lbs	41.8	40.4	39.1	37.8	36.6	35.4	34.3	33.3	32.3	31.3	30.4	29.5	28.7	27.9	27.1	26.4	25.7	25.0	24.3
205 lbs	42.8	41.4	40.0	38.7	37.5	36.3	35.2	34.1	33.1	32.1	31.2	30.3	29.4	28.6	27.8	27.0	26.3	25.6	25.0
210 lbs	43.9	42.4	41.0	39.7	38.4	37.2	36.0	34.9	33.9	32.9	31.9	31.0	30.1	29.3	28.5	27.7	27.0	26.2	25.6
215 lbs	44.9	43.4	42.0	40.6	39.3	38.1	36.9	35.8	34.7	33.7	32.7	31.7	30.8	30.0	29.2	28.4	27.6	26.9	26.2
220 lbs	46.0	44.4	43.0	41.6	40.2	39.0	37.8	36.6	35.5	34.5	33.5	32.5	31.6	30.7	29.8	29.0	28.2	27.5	26.8
225 lbs	47.0	45.4	43.9	42.5	41.2	39.9	38.6	37.4	36.3	35.2	34.2	33.2	32.3	31.4	30.5	29.7	28.9	28.1	27.4
230 lbs	48.1	46.5	44.9	43.5	42.1	40.7	39.5	38.3	37.1	36.0	35.0	34.0	33.0	32.1	31.2	30.3	29.5	28.7	28.0
235 lbs	49.1	47.5	45.9	44.4	43.0	41.6	40.3	39.1	37.9	36.8	35.7	34.7	33.7	32.8	31.9	31.0	30.2	29.4	28.6
240 lbs	50.2	48.5	46.9	45.3	43.9	42.5	41.2	39.9	38.7	37.6	36.5	35.4	34.4	33.5	32.5	31.7	30.8	30.0	29.2
245 lbs	51.2	49.5	47.8	46.3	44.8	43.4	42.1	40.8	39.5	38.4	37.3	36.2	35.2	34.2	33.2	32.3	31.5	30.6	29.8
250 lbs	52.2	50.5	48.8	47.2	45.7	44.3	42.9	41.6	40.4	39.2	38.0	36.9	35.9	34.9	33.9	33.0	32.1	31.2	30.4
255 lbs	53.3	51.5	49.8	48.2	46.6	45.2	43.8	42.4	41.2	39.9	38.8	37.7	36.6	35.6	34.6	33.6	32.7	31.9	31.0
260 lbs	54.3	52.5	50.8	49.1	47.6	46.1	44.6	43.3	42.0	40.7	39.5	38.4	37.3	36.3	35.3	34.3	33.4	32.5	31.6
265 lbs	55.4	53.5	51.8	50.1	48.5	46.9	45.5	44.1	42.8	41.5	40.3	39.1	38.0	37.0	35.9	35.0	34.0	33.1	32.3
270 lbs	56.4	54.5	52.7	51.0	49.4	47.8	46.3	44.9	43.6	42.3	41.1	39.9	38.7	37.7	36.6	35.6	34.7	33.7	32.9
275 lbs	57.5	55.5	53.7	52.0	50.3	48.7	47.2	45.8	44.4	43.1	41.8	40.6	39.5	38.4	37.3	36.3	35.3	34.4	33.5
280 lbs	58.5	56.6	54.7	52.9	51.2	49.6	48.1	46.6	45.2	43.9	42.6	41.3	40.2	39.1	38.0	36.9	35.9	35.0	34.1
285 lbs	59.6	57.6	55.7	53.8	52.1	50.5	48.9	47.4	46.0	44.6	43.3	42.1	40.9	39.7	38.7	37.6	36.6	35.6	34.7
290 lbs	60.6	58.6	56.6	54.8	53.0	51.4	49.8	48.3	46.8	45.4	44.1	42.8	41.6	40.4	39.3	38.3	37.2	36.2	35.3
295 lbs	61.7	59.6	57.6	55.7	54.0	52.3	50.6	49.1	47.6	46.2	44.9	43.6	42.3	41.1	40.0	38.9	37.9	36.9	35.9
300 lbs	62.7	60.6	58.6	56.7	54.9	53.1	51.5	49.9	48.4	47.0	45.6	44.3	43.0	41.8	40.7	39.6	38.5	37.5	36.5
305 lbs	63.7	61.6	59.6	57.6	55.8	54.0	52.4	50.8	49.2	47.8	46.4	45.0	43.8	42.5	41.4	40.2	39.2	38.1	37.1
310 lbs	64.8	62.6	60.5	58.6	56.7	54.9	53.2	51.6	50.0	48.6	47.1	45.8	44.5	43.2	42.0	40.9	39.8	38.7	37.7
315 lbs	65.8	63.6	61.5	59.5	57.6	55.8	54.1	52.4	50.8	49.3	47.9	46.5	45.2	43.9	42.7	41.6	40.4	39.4	38.3
320 lbs	66.9	64.6	62.5	60.5	58.5	56.7	54.9	53.2	51.6	50.1	48.7	47.3	45.9	44.6	43.4	42.2	41.1	40.0	39.0
325 lbs	67.9	65.6	63.5	61.4	59.4	57.6	55.8	54.1	52.5	50.9	49.4	48.0	46.6	45.3	44.1	42.9	41.7	40.6	39.6

Sources

About Body Mass Index (BMI) - CDC

Disclaimer

The information on this page is intended to be an educational reference and is not to be taken as medical advice. If you think you're having a medical emergency, please call 911 immediately.

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