1. What is Ideal Body Weight?

Ideal Body Weight (IBW) is an estimate of healthy weight range based on height, gender, and body frame size. It's used clinically for drug dosing, nutritional assessment, and setting weight goals.

2. How Does the Calculator Work?

The calculator uses the Devine formula:

Where:

• Height — Measured in inches
• Gender — Different base weights for men and women
• Frame Size — Adjusts the range (±10% for medium frame)

BMI Calculation: If weight is provided, BMI is calculated as weight (lbs) × 703 / height² (inches)

3. Importance of IBW and BMI

Details: IBW helps determine appropriate medication doses, nutritional status, and weight management goals. BMI categorizes weight status and screens for potential health problems.

4. Using the Calculator

Tips: Enter height in inches, optionally enter weight in pounds for BMI calculation. Select gender and body frame size for most accurate IBW range.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between IBW and BMI?
A: IBW estimates healthy weight range for an individual based on height and frame, while BMI is a general weight-to-height ratio used to categorize weight status.

Q2: How accurate is the IBW calculation?
A: It's an estimate. Actual healthy weight may vary based on muscle mass, body composition, and other factors.

Q3: What are the BMI categories?
A: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), Obese (≥30).

Q4: How do I determine my frame size?
A: Measure wrist circumference: Small (<6.5" men/<5.5" women), Medium (6.5-7.5"/5.5-6.5"), Large (>7.5"/>6.5").

Q5: When is IBW most clinically useful?
A: For medication dosing (especially chemotherapy), ventilator settings, and nutritional assessment in hospitalized patients.