1. What is BMI?

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared. BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

• Weight — in kilograms (kg)
• Height — in meters (m)

Explanation: BMI is calculated by dividing weight in kilograms by height in meters squared. The result is then compared to standard categories.

3. Importance of BMI Calculation

Details: BMI is a simple, inexpensive screening method for weight category—underweight, healthy weight, overweight, and obesity. For military personnel, maintaining a healthy BMI is often part of fitness requirements.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For height, you can convert from cm by dividing by 100 (e.g., 175 cm = 1.75 m). All values must be valid (weight > 0, height > 0).

5. Frequently Asked Questions (FAQ)

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

Q2: Are there different BMI standards for military personnel?
A: Yes, military organizations often have stricter BMI requirements than general population standards.

Q3: What are the limitations of BMI?
A: BMI doesn't directly measure body fat and doesn't account for muscle mass, bone density, or fat distribution.

Q4: How often should I check my BMI?
A: For most adults, checking every few months is sufficient unless you're actively trying to change your weight.

Q5: What's a healthy BMI for soldiers?
A: Military standards vary by country and branch, but typically aim for BMI between 18.5 and 25.