Ideal Body Weight Calculator

Use this Ideal Body Weight Calculator to calculate your ideal body weight (IBW) in pounds or kilograms, based on your height and your gender. The calculator employs the most well-known equations to calculate your IBW.

To calculate your ideal body weight using our IBW calculator, complete the following simple steps:

  • 1. Choose the measurement system (imperial or metric)
  • 2. Select your gender
  • 3. Input your height in either feet and inches or centimetres
  • 4. Select the IBW equation you would like to use
  • 5. Click the "Calculate" button to generate the results.
IBW Calculator

Results
Estimated Ideal Body Weight (IBW):
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Ideal Body Weight Formulas

The equations to compute your ideal body weight (IBW) are listed below:

The Broca equation

Women: IBW [kg] = (height[cm] - 100) - ((height[cm] - 100) × 15%)
Men: IBW [kg] = (height[cm] - 100) - ((height[cm] - 100) × 10%)

The Robinson equation

Women: IBW [kg] = 49 kg + 1.7 kg × (height[in] - 60)
Men: IBW [kg] = 52 kg + 1.9 kg × (height[in] - 60)

The Devine equation

Women: IBW [kg] = 45.5 kg + 2.3 kg × (height[in] - 60)
Men: IBW [kg] = 50 kg + 2.3 kg × (height[in] - 60)

The Miller equation

Women: IBW [kg] = 53.1 kg + 1.36 kg × (height[in] - 60)
Men: IBW [kg] = 56.2 kg + 1.41 kg × (height[in] - 60)

The Hamwi equation

Women: IBW [kg] = 45.5 kg + 2.2 kg × (height[in] - 60)
Men: IBW [kg] = 48 kg + 2.7 kg × (height[in] - 60)

The Lemmens equation

Women, Men: IBW [kg] = 22 × height[m] 2

BMI range equation

IBWmin [kg] = (18.5 / 703) × height[in] 2
IBWmax [kg] = (24.9 / 703) × height[in] 2

You may also be interested in our LBM Calculator (Lean Body Mass Calculator)

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