1. What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult women. It's a simple screening tool to identify potential weight problems.

2. How BMI is Calculated

The calculator uses the standard BMI formula:

Where:

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

Explanation: BMI provides a simple numeric measure of a person's thickness or thinness, allowing health professionals to discuss weight problems objectively.

3. BMI Categories for UK Women

Categories:

• Underweight: BMI less than 18.5
• Normal weight: BMI 18.5 to 24.9
• Overweight: BMI 25 to 29.9
• Obese: BMI 30 or greater

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Is BMI accurate for all women?
A: BMI is a useful screening tool but has limitations. It may overestimate body fat in muscular women and underestimate it in older women who have lost muscle mass.

Q2: What's a healthy BMI range for UK women?
A: For most UK women, a BMI between 18.5 and 24.9 is considered healthy.

Q3: Should pregnant women use BMI?
A: BMI calculations during pregnancy are not accurate. Consult your midwife or doctor for appropriate weight guidance during pregnancy.

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

Q5: Where can I get advice about my BMI result?
A: Consult your GP or a registered dietitian if you have concerns about your BMI result.