Body Weight Calculation Formula

Devine Formula:

\[ Ideal Weight = 50 + 2.3 \times (height_{in} - 60) \text{ (men)} \]

Ideal Weight (kg):

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1. What is the Devine Formula?

The Devine formula is a method for estimating ideal body weight based on height and gender. It was originally developed for medical purposes to calculate appropriate medication dosages and has since become widely used for general weight assessment.

2. How Does the Calculator Work?

The calculator uses the Devine formula:

\[ \text{Male: } Ideal Weight = 50 + 2.3 \times (height_{in} - 60) \] \[ \text{Female: } Ideal Weight = 45.5 + 2.3 \times (height_{in} - 60) \]

Where:

\( height_{in} \) — Height in inches
50 kg — Base weight for males at 5 feet (60 inches)
45.5 kg — Base weight for females at 5 feet (60 inches)
2.3 kg — Weight added per inch over 5 feet

Explanation: The formula calculates ideal body weight by starting with a base weight at 5 feet height and adding 2.3 kg for each additional inch of height.

3. Importance of Ideal Weight Calculation

Details: Knowing your ideal body weight helps in setting realistic health goals, determining appropriate medication dosages, assessing nutritional status, and evaluating overall health risks associated with being underweight or overweight.

4. Using the Calculator

Tips: Enter your height in inches, select your gender, and click calculate. For accurate results, measure height without shoes and use precise measurements.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the Devine formula?
A: The Devine formula provides a reasonable estimate for average body frames but may not account for individual variations in bone structure, muscle mass, or body composition.

Q2: What if my height is less than 5 feet (60 inches)?
The formula still works mathematically, subtracting 2.3 kg for each inch below 5 feet, though clinical relevance may vary.

Q3: Are there other ideal weight formulas?
A: Yes, other common formulas include Robinson, Miller, and Hamwi methods, each with slightly different coefficients and base weights.

Q4: Should athletes use this formula?
A: Athletes with higher muscle mass may find this formula underestimates their healthy weight, as it doesn't account for body composition differences.

Q5: How does this relate to BMI?
A: Ideal weight calculations complement BMI but provide a specific weight target rather than a range. Both tools should be used together for comprehensive health assessment.