Ideal Weight Calculator
Calculate your ideal body weight using Robinson, Miller, Devine, and Hamwi formulas.
An ideal weight calculator estimates a healthy target weight based on your height, gender, and frame size using multiple well-known formulas.
Examples
Average Height Male
Average Height Female
Frequently Asked Questions
Which formula is most accurate?
What is frame size?
Quick Tips
- •Use the average of multiple formulas rather than relying on a single one for a more balanced estimate.
- •Consider body composition — a muscular person may weigh more than the "ideal" and still be healthy.
- •Consult a healthcare provider for a personalized healthy weight assessment.
An ideal weight calculator estimates a healthy target weight based on your height, gender, and frame size using multiple well-known formulas.
How to Use This Calculator
Enter your sex and height. You can optionally add your current weight and body frame (small, medium, large). Click Calculate to see healthy weight ranges from several common formulas (e.g. Devine, Robinson) and the BMI 18.5–24.9 range. Use the results as a general guide, not a strict target.
Understanding the Formula
Common formulas (Robinson, Miller, Devine, Hamwi) use height over a 5-foot baseline. The healthy weight range is based on a BMI of 18.5 to 24.9.
Examples
Average Height Male
A 5'10" male typically has an ideal weight range centered around 165 lbs.
Average Height Female
A 5'4" female typically has an ideal weight range centered around 125 lbs.
Frequently Asked Questions
Which formula is most accurate?
Most medical professionals use the Devine or Robinson formulas, but the average of all four provides a more balanced outlook.
What is frame size?
Frame size accounts for bone density and muscle potential, often measured by wrist circumference.
Assumptions & Limitations
- Based on population averages; individual results vary with genetics, muscle mass, and bone density.
- Formulas were developed from limited demographic samples and may not apply equally to all ethnic groups.
- Does not account for age-related changes in body composition.