BMI Chart by Height and Weight (Adults)
By Dr. Ahmed Mortuza Saleque · Updated · How we check our content
The short answer
BMI is weight divided by height squared: kg ÷ m², or lb × 703 ÷ in². For adults, 18.5 to 24.9 is the healthy range, 25 to 29.9 is overweight and 30 or more is obesity. At 5 ft 8 in, the healthy range is about 122 to 164 lb (55 to 74 kg).
Open the BMI Calculator →
Healthy weight range by height
Adults aged 20 and over. Weights rounded to the nearest pound or kilogram.
| Height | Healthy weight (BMI 18.5 – 24.9) | In kilograms | Obesity starts above (BMI 30) |
|---|---|---|---|
| 5 ft 0 in (152 cm) | 95 – 128 lb | 43 – 58 kg | 153 lb |
| 5 ft 2 in (157 cm) | 101 – 136 lb | 46 – 62 kg | 163 lb |
| 5 ft 4 in (163 cm) | 108 – 145 lb | 49 – 66 kg | 174 lb |
| 5 ft 6 in (168 cm) | 115 – 154 lb | 52 – 70 kg | 185 lb |
| 5 ft 8 in (173 cm) | 122 – 164 lb | 55 – 74 kg | 197 lb |
| 5 ft 10 in (178 cm) | 129 – 174 lb | 58 – 79 kg | 208 lb |
| 6 ft 0 in (183 cm) | 136 – 184 lb | 62 – 83 kg | 220 lb |
| 6 ft 2 in (188 cm) | 144 – 194 lb | 65 – 88 kg | 233 lb |
For an exact figure, enter your height and weight in the BMI calculator.
BMI categories for adults
| BMI | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Healthy weight |
| 25.0 – 29.9 | Overweight |
| 30.0 – 34.9 | Obesity class 1 |
| 35.0 – 39.9 | Obesity class 2 |
| 40.0 and above | Obesity class 3 |
How to calculate BMI
- Metric: divide weight in kilograms by height in metres squared. 70 kg at 1.75 m is 70 ÷ (1.75 × 1.75) = 22.9.
- Imperial: multiply weight in pounds by 703, then divide by height in inches squared. 170 lb at 69 in is 170 × 703 ÷ (69 × 69) = 25.1.
- Compare the result with the categories above.
What BMI does not tell you
- It cannot tell muscle from fat, so athletes and very muscular people can score as overweight.
- It says nothing about where fat is carried; waist size adds useful information.
- Health risk at a given BMI differs between ethnic groups, and some guidelines use lower cut-offs for people of Asian descent.
- It is not used the same way for children and teenagers, who are assessed with age and sex percentile charts.
- It is less reliable in pregnancy and in older adults who have lost muscle.
To look at composition instead of weight alone, try the body fat calculator.
Using your result
BMI is a screening measure, not a diagnosis. A result outside the healthy range is a reason to talk with a doctor, who can consider blood pressure, blood tests, waist size, family history and how you feel. This article is general information, not medical advice.
Common questions
What is a healthy BMI?
For adults, 18.5 to 24.9. Below 18.5 is underweight and 25 or above is overweight.
What should I weigh for my height?
Use the chart above. For example, at 5 ft 6 in the healthy range is about 115 to 154 lb (52 to 70 kg).
How do I calculate BMI in pounds and inches?
Multiply your weight in pounds by 703 and divide by your height in inches squared. 150 lb at 65 in gives 150 × 703 ÷ 4,225 = 25.0.
Is BMI accurate for muscular people?
No. Muscle is dense, so a lean, muscular person can have a high BMI. Body fat percentage or waist measurement is more informative in that case.
Calculators for this article
Sources
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