BMI, minus the clutter.
Switch between kg/cm and lbs/ft. Get your number, category, and healthy range in seconds.
- Metric + imperial
- Healthy range
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BMI categories
BMI is a quick screening tool — useful, but not a full health diagnosis.
Underweight
Below 18.5
Healthy weight
18.5 – 24.9
Overweight
25 – 29.9
Obese Class I
30 – 34.9
Obese Class II
35 – 39.9
Obese Class III
40 and above
Healthy weight chart
A quick reference by height.
| Height | Healthy range |
|---|---|
| 5'0" / 152 cm | 95–128 lb / 43–58 kg |
| 5'2" / 157 cm | 101–136 lb / 46–62 kg |
| 5'4" / 163 cm | 108–145 lb / 49–66 kg |
| 5'6" / 168 cm | 115–154 lb / 52–70 kg |
| 5'8" / 173 cm | 122–164 lb / 55–74 kg |
| 5'10" / 178 cm | 129–174 lb / 58–79 kg |
| 6'0" / 183 cm | 136–184 lb / 62–83 kg |
| 6'2" / 188 cm | 144–194 lb / 65–88 kg |
Metric
Use kg and cm.
Imperial
Use pounds, feet, inches.
Reality check
BMI is an estimate.
BMI Guides
Learn more about BMI, body fat, and how to reach a healthy weight.
What Is a Healthy BMI?
Learn what the BMI ranges mean and how to interpret your result as an adult.
BMI vs Body Fat Percentage
Understand the key differences between BMI and body fat, and which to use.
How to Lower Your BMI
Practical, evidence-based steps to reduce your BMI through diet and lifestyle.
Quick FAQ
How is BMI calculated?
Metric: kg ÷ meters². Imperial: lbs ÷ inches² × 703.
Does BMI change for women or men?
The adult formula is the same. Body composition still matters.
What is a healthy BMI?
For most adults, 18.5 to 24.9 is considered healthy.
What is a healthy BMI for women?
For most adult women, 18.5 to 24.9 is generally considered a healthy BMI. BMI does not account for pregnancy, muscle mass, or individual health factors.
What is a healthy BMI for men?
For most adult men, 18.5 to 24.9 is generally considered a healthy BMI. Athletic build and muscle mass can make BMI less precise.
Is BMI accurate for athletes?
BMI can be less accurate for athletes because it does not distinguish muscle from fat. A muscular person may have a high BMI without having excess body fat.
What is a BMI of 30?
A BMI of 30 is the starting point for the obesity category for most adults. It is a screening measure, not a diagnosis by itself.
How can I lower my BMI?
Lowering BMI usually involves gradual weight loss through nutrition, physical activity, sleep, and sustainable habits. Talk with a healthcare professional for personal guidance.