1. What is BMI?

BMI (Body Mass Index) is a measure that uses your height and weight to determine if your weight is healthy. The NHS Inform BMI calculator provides a quick assessment based on Australian health guidelines.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

• \( weight \) — Body weight in kilograms
• \( height \) — Height in meters

Explanation: The formula calculates your weight in relation to your height squared, providing a standardized measure of body composition.

3. Importance of BMI Calculation

Details: BMI is a simple screening tool that helps identify potential weight problems in adults. While it doesn't measure body fat directly, it correlates with more direct measures of body fat.

4. Using the Calculator

Tips: Enter your weight in kilograms and height in meters. For accurate results, measure your height without shoes and weight with minimal clothing.

5. Frequently Asked Questions (FAQ)

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

Q2: Is BMI accurate for everyone?
A: BMI may not be accurate for athletes (high muscle mass), pregnant women, or the elderly. Other measures may be needed.

Q3: How often should I check my BMI?
A: For most adults, checking every 6-12 months is sufficient unless you're actively trying to change your weight.

Q4: What's a healthy BMI in Australia?
A: The healthy range is the same worldwide: 18.5 to 24.9 kg/m², though individual health factors may vary.

Q5: Should children use this calculator?
A: No, children and teens need age- and sex-specific BMI percentiles. This calculator is for adults only.