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How to Use Our Ideal Weight Calculator

3 min read

How to Use Our Ideal Weight Calculator

What should you weigh? It is a common question without a single answer, but our Ideal Weight Calculator gives you a well-researched range based on multiple medical formulas.

Ideal Weight Calculator

inches

Average Ideal Weight

159.4 lbs

Healthy BMI Range129 - 174
Robinson Formula156.5 lbs
Miller Formula155 lbs
Devine Formula160.9 lbs
Hamwi Formula165.3 lbs

Entering Your Details

  • Height -- Your standing height in feet/inches or centimeters.
  • Gender -- Male and female formulas differ due to typical body composition differences.
  • Frame Size -- Small, medium, or large. If unsure, measure your wrist circumference: under 6.5 inches (women) or under 7 inches (men) suggests a small frame.

What You Get

The calculator provides results from several respected formulas:

  • Devine Formula -- Widely used in pharmacology for drug dosing
  • Robinson Formula -- Modified version of the Devine formula
  • Miller Formula -- Generally produces a lower target weight
  • Hamwi Formula -- Often used in clinical nutrition

Each formula produces a slightly different number. The range across all formulas gives you a realistic target zone rather than a single "perfect" weight.

Keeping Perspective

Ideal weight formulas do not account for muscle mass, bone density, or individual body composition. An athlete with significant muscle may weigh more than the calculated ideal and be perfectly healthy. Use these numbers as a general guide, not an absolute target.

The most important weight-related health indicator is the trend over time and how you feel, not a specific number on the scale.

Related Calculators

BMI Calculator

Calculate your Body Mass Index (BMI) to assess your weight category. Supports both imperial and metric units.

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Body Fat Percentage Calculator

Estimate your body fat percentage using the US Navy method. Determine your body composition category and fat vs lean mass.

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