See your BMI category and the healthy weight range for your height.
Enter pounds and feet/inches or switch to metric, then track your progress with a private weight chart.
For adults 20 and older. Children and teens (2–19) need BMI-for-age percentiles, and BMI isn't used during pregnancy.
When starting a diet or health regimen, "BMI" and "Ideal Weight" are the first metrics to check. This tool instantly calculates your BMI and provides three goal weights based on global standards.
BMI (Body Mass Index) is a screening tool used by the WHO (World Health Organization) and CDC to categorize weight status based on height and weight.
This is the range the CDC uses for adults. Any weight inside it counts as a healthy weight for your height, so there's no single "perfect" number to hit. The calculator shows how many pounds (or kg) you are above or below the range.
BMI 22 sits near the middle of the healthy range and is often used as a reference point because it has been linked with a low risk of conditions such as high blood pressure and type 2 diabetes. It's a reference, not a target you need to reach exactly.
A note on "model" or "aesthetic" weights: some calculators suggest a BMI of 20 or even 18. A BMI under 18.5 is classified as underweight, so this calculator doesn't show low numbers as goals.
Source: CDC, Adult BMI Categories (checked October 29, 2026). This calculator is for general information and isn't medical advice.
In the morning, after using the bathroom and before breakfast, to ensure consistent conditions.
Check your BMI in pounds and feet or in kilograms and centimeters, then track it over time.
For adults 20 and older, a BMI from 18.5 to 24.9 is considered a healthy weight. This table shows what that range looks like for common heights.
| Height | Healthy weight (BMI 18.5–24.9) | Overweight begins (BMI 25) | Healthy weight in kg |
|---|---|---|---|
| 4'10" (147 cm) | 89–119 lbs | 120 lbs | 40–54 kg |
| 5'0" (152 cm) | 95–128 lbs | 128 lbs | 43–58 kg |
| 5'2" (157 cm) | 101–136 lbs | 137 lbs | 46–62 kg |
| 5'4" (163 cm) | 108–145 lbs | 146 lbs | 49–66 kg |
| 5'6" (168 cm) | 115–154 lbs | 155 lbs | 52–70 kg |
| 5'8" (173 cm) | 122–164 lbs | 164 lbs | 55–74 kg |
| 5'10" (178 cm) | 129–174 lbs | 174 lbs | 58–79 kg |
| 6'0" (183 cm) | 136–184 lbs | 184 lbs | 62–83 kg |
| 6'2" (188 cm) | 144–194 lbs | 195 lbs | 65–88 kg |
| 6'4" (193 cm) | 152–205 lbs | 205 lbs | 69–93 kg |
US units: BMI = weight (lbs) ÷ height (in)² × 703. For someone who is 5'9" (69 inches) and 170 lbs: 170 ÷ (69 × 69) × 703 = 25.1.
Metric units: BMI = weight (kg) ÷ height (m)². For someone who is 175 cm and 70 kg: 70 ÷ (1.75 × 1.75) = 22.9.
BMI is a quick screening number, not a diagnosis. It does not measure body fat directly, so it can overestimate fat in muscular people and athletes and underestimate it in older adults who have lost muscle. Waist size, blood pressure, blood sugar, activity level, and family history all matter too. For children and teens, BMI is compared with age- and sex-specific percentiles instead of the adult categories.
The goal weights in this calculator (BMI 22 and 20) are reference points only. A BMI below 18.5 is classified as underweight, so talk with your doctor or a registered dietitian before aiming for a very low weight or making major changes to your diet.
For adults, a healthy weight is any weight that puts your BMI between 18.5 and 24.9. For example, at 5'4" that is about 108 to 145 lbs, and at 5'10" it is about 129 to 174 lbs. Enter your height above to see your exact range.
For adults 20 and older, the CDC uses these BMI categories: below 18.5 is underweight, 18.5 to 24.9 is healthy weight, 25 to 29.9 is overweight, and 30 or higher is obesity (class 1: 30 to 34.9, class 2: 35 to 39.9, class 3: 40 or higher).
The adult formula and categories are the same for everyone. Women typically have more body fat than men at the same BMI, which is one reason BMI works best alongside other health measures.
Not always. Muscle weighs more than fat for its size, so muscular people can have a BMI in the overweight range while having low body fat. Waist circumference or a body fat measurement gives a fuller picture.
No. Children and teens need BMI-for-age percentiles based on growth charts. Ask a pediatrician or use a calculator designed for children.
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