Reverse BMI Calculator
Free Online Tool for Professionals
Instantly calculate your required weight or height for a given BMI. Supports both metric (cm) and imperial (feet/inch) units. Designed for health, fitness, and medical professionals.
- Supports both metric and imperial units
- Accurate reverse BMI calculation
- Professional and user-friendly interface
BMI = Body Mass Index
What is BMI?
Body Mass Index (BMI) is a value calculated by dividing a person's weight in kilograms by the square of their height in meters:BMI = weight (kg) / [height (m)]². BMI is commonly used to assess whether an adult's body weight is within a healthy range.
Limitations of BMI
- BMI reflects overall body weight but cannot distinguish between fat and non-fat mass (such as muscle and organs).
- Individuals with the same BMI may have different body fat percentages.
- BMI is a statistical indicator of nutritional status and is not a direct measure of body fat or fat distribution.
- BMI does not indicate whether fat is distributed in the abdomen or limbs. Abdominal fat is more closely associated with increased risks of heart disease, hypertension, and diabetes.
BMI for Adults
| Category | BMI (kg/m²) |
|---|---|
| Underweight | < 18.5 |
| Normal weight | 18.5 – 24.9 |
| Overweight | 25.0 – 29.9 |
| Obesity (Class I) | 30.0 – 34.9 |
| Obesity (Class II) | 35.0 – 39.9 |
| Obesity (Class III) | ≥ 40.0 |