BMI Calculator
Your weight. Your height. Your baseline.
BMI Calculator
What is the Body Mass Index (BMI)?
BMI is a measure that uses your height and weight to estimate whether your weight is in a healthy range. It's calculated by dividing your weight in kilograms by your height in meters squared. While BMI is a useful screening tool, it doesn't account for factors like muscle mass, bone density, or body composition -- so it's best used as one data point among many.
BMI Ranges
- ✓ Below 18.5 — Underweight
- ✓ 18.5 – 24.9 — Healthy Weight
- ✓ 25.0 – 29.9 — Overweight
- ✓ 30.0 and above — Obese
BMI Has Its Limits
BMI doesn't account for muscle mass, bone density, or body composition. A muscular athlete and a sedentary person can share the same number but have completely different health profiles. Age, sex, and ethnicity can also affect what a given BMI actually means for your risk of disease. Use it as a starting point -- not a verdict.
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