Ideal Weight Calculator for Metric and Imperial Units
This calculator accepts both metric (centimeters and kilograms) and imperial (feet, inches, and pounds) measurements. Switching unit toggles preserves exact numerical equivalency so you can easily calculate your healthy weight range in whichever unit format you prefer.
What Is an Ideal Weight?
There is no single "ideal" body weight that applies to every individual. In public health, a healthy weight range is defined as the range of body weights associated with a standard adult Body Mass Index (BMI) between 18.5 and 24.9.
How Is Ideal Weight Calculated?
The healthy weight range is calculated by rearranging the standard adult BMI formula across the 18.5 to 24.9 cutoff values:
BMI Formula
Standard Body Mass Index ratio used by public health organizations.
Healthy BMI Weight Range Formula
Calculates lower and upper weight boundaries for a given height.
Healthy Weight Range by Height
Showing a range rather than a single number better reflects that healthy body weight varies across individuals based on muscle mass, body frame, and natural body composition.
What Does BMI Measure?
BMI is a screening measure of weight relative to height. It does not measure body fat directly, nor does it distinguish between muscle mass, bone density, and body fat distribution.
Limitations of Ideal Weight Calculators
BMI-based healthy weight ranges are general screening estimates for adults. They do not measure body fat directly or account for muscle mass, body composition, pregnancy, age, ethnicity, disability, medications, or medical conditions. A qualified healthcare professional can help interpret health measures in your individual context.
Using Ideal Weight Estimates Safely
An ideal weight calculator cannot determine a healthy weight for every individual. Avoid using this estimate as a strict target, especially if you are under 15, pregnant, breastfeeding, managing an eating disorder, recovering from illness or surgery, or have a medical condition that affects weight or growth. Speak with a qualified healthcare professional for individualized guidance.
Public Health Sources & Citations
- Centers for Disease Control and Prevention (CDC). About Adult BMI. Available at: cdc.gov/bmi/adult
- World Health Organization (WHO). Body Mass Index - BMI Classifications. Available at: who.int/fact-sheets