Bmi Calculator Inches And Lbs

BMI Formula:

\[ BMI = 703 \times \frac{weight\ (lbs)}{height\ (in)^2} \]

Body Mass Index (BMI):

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1. What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It provides a simple numeric measure of a person's thickness or thinness.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

\[ BMI = 703 \times \frac{weight\ (lbs)}{height\ (in)^2} \]

Where:

\( weight \) — Weight in pounds (lbs)
\( height \) — Height in inches (in)
\( 703 \) — Conversion factor for imperial units

Explanation: The formula calculates body mass index by dividing weight by the square of height, with a conversion factor for imperial units.

3. Importance of BMI Calculation

Details: BMI is a simple screening tool to identify possible weight problems in adults. It helps categorize individuals as underweight, normal weight, overweight, or obese.

4. Using the Calculator

Tips: Enter weight in pounds and height in inches. All values must be valid (weight > 0, height > 0).

5. Frequently Asked Questions (FAQ)

Q1: What are the BMI categories?
A: Underweight (<18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obese (≥30).

Q2: Is BMI accurate for everyone?
A: BMI may overestimate body fat in athletes and underestimate it in older people who have lost muscle mass.

Q3: Why use 703 in the formula?
A: This is the conversion factor needed when using pounds and inches (kg/m² to lbs/in² conversion).

Q4: Should children use this calculator?
A: No, children need age- and sex-specific BMI percentiles rather than adult categories.

Q5: What are limitations of BMI?
A: Doesn't distinguish between muscle and fat, doesn't account for fat distribution, and may vary by ethnicity.