What should you actually weigh?
Discover your ideal body weight (IBW) based on height, age, and sex using the same formulas clinicians use. Beyond just a range, get a target for your fitness journey.
Set Your Target
Hamwi Method
Common clinical standard (1964)
Devine Formula
Used for dosage calculations (1974)
Robinson Table
Revised modern scaling (1983)
Miller Formula
Focuses on lean body mass (1983)
Medical Disclaimer
Ideal body weight formulas provide a reference point based on actuarial tables. They do not account for physical fitness, athletic build, or metabolic health. Always consult with a physician or nutritionist for personalized health targets.
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Discover more tools to help you on your fitness journey.
Understanding Your Result
What is IBW?
Ideal Body Weight (IBW) was originally developed to estimate dosages for medications. Today, it serves as a healthy baseline range for individuals to maintain optimal metabolic health.
Frame Size Matters
Our calculator provides a 10% range. If you have a larger skeletal frame or significant muscle mass, your personal "ideal" may be at the higher end of the range.
Take the Next Step
Knowing your number is motivated. Seeing it is life-changing. Use our AI-powered transformation tool to generate a realistic preview of your body at your new target weight.
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