1. What is the Devine Formula?

The Devine formula is a method for estimating ideal body weight (IBW) based on height. It was originally developed for medication dosing and provides a standardized weight reference for clinical applications.

2. How Does the Calculator Work?

The calculator uses the Devine formula:

Where:

• \( height_{in} \) — Height in inches
• 50 — Base weight in kg for a 5-foot (60-inch) person
• 2.3 — Additional kg per inch over 5 feet

Explanation: The formula provides an estimate of ideal body weight for adult men. For women, the formula is typically adjusted to 45.5 + 2.3 × (height - 60).

3. Importance of Ideal Body Weight Calculation

Details: Ideal body weight calculations are used in various medical contexts including medication dosing, nutritional assessment, and determining appropriate weight goals for patients.

4. Using the Calculator

Tips: Enter height in inches. For conversion from feet and inches: multiply feet by 12 and add remaining inches (e.g., 5'8" = 5×12 + 8 = 68 inches).

5. Frequently Asked Questions (FAQ)

Q1: What is the formula for women?
A: For women, the Devine formula is typically adjusted to: IBW = 45.5 + 2.3 × (height - 60).

Q2: How accurate is the Devine formula?
A: While useful for clinical estimation, it doesn't account for factors like body composition, frame size, or muscle mass. It's best used as a general reference.

Q3: What are the limitations of this formula?
A: It may not be accurate for very short or very tall individuals, athletes with high muscle mass, or those with unusual body proportions.

Q4: How is IBW used in medicine?
A: IBW is commonly used for calculating medication doses, nutritional requirements, and in anesthesia for ventilator settings.

Q5: Are there alternative IBW formulas?
A: Yes, other formulas include the Robinson formula, Miller formula, and Hamwi method, each with slightly different calculations.