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What is my ideal body weight?

Calculate your ideal weight range based on height, gender, and body frame using multiple scientific formulas.

What This Calculator Is

An ideal weight calculator estimates a healthy weight range based on your height, gender, and body frame size. It uses established formulas (like the Devine formula) to provide a target range rather than a single number, acknowledging that healthy weight varies by individual body composition.

Who This Calculator Is For

Anyone setting weight goals, people beginning a health journey who want realistic targets, and those curious about medically-suggested weight ranges. It's a reference point, not a rigid prescription—everyone's ideal weight is personal.

When to Use This Calculator

Use this calculator when setting weight loss or gain goals, when evaluating whether your current weight falls within healthy ranges, or when you want medical perspective on target weight. Always consider your muscle mass, activity level, and how you feel alongside any number.

Inputs

5
10

Results

Ideal Weight (lbs)

161

Healthy Range Low129
Healthy Range High174
BMI-Based Ideal153

Results are general guidelines, not medical advice. Consult a healthcare provider.

Insights

Your ideal range

Based on your height and frame, your ideal weight range is 129-174 lbs.

Remember

Ideal weight varies by muscle mass, bone density, and individual factors. Focus on health markers, not just the scale.

How Ideal Weight Is Calculated

The calculator uses formulas like Devine, Robinson, Miller, and Hamwi to calculate ideal body weight. Results are adjusted based on your body frame size.

Devine Formula: male idealWeight(kg) = 50 + 2.3*(heightInches-60); female = 45.5 + 2.3*(heightInches-60)
Converted to lbs via *2.20462, then multiplied by frame adjustment
healthy BMI range: weightRangeLow = 18.5*height(m)^2*2.20462 lbs, weightRangeHigh = 24.9*height(m)^2*2.20462 lbs, bmiHealthyWeight = 22*height(m)^2*2.20462
Where:
heightInches = feet*12+inches
frame adjustment: small=0.9x, large=1.1x, medium/default=1.0x
Assumptions:
Devine formula (one of several ideal-weight formulas; not Robinson/Miller/Hamwi)
Result rounded to nearest whole pound
Returns all zeros if height <= 0

Key Takeaways

  • •Ideal weight formulas don't account for muscle mass — athletes may weigh more
  • •Focus on body composition (fat vs muscle) not just scale weight
  • •A healthy BMI range is 18.5-24.9 for most adults
  • •Waist circumference is another important health indicator
  • •Consult a healthcare provider for personalized guidance