BMI Formula:
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Definition: This calculator estimates Body Mass Index (BMI) using weight in kilograms and height in centimeters, following UK standards.
Purpose: It helps individuals assess whether their weight is in a healthy range relative to their height.
The calculator uses the formula:
Where:
Explanation: The weight is divided by the square of height (converted to meters) to calculate BMI.
Details: BMI is a simple screening tool that helps identify potential weight problems in adults, though it doesn't directly measure body fat.
Tips: Enter your weight in kilograms and height in centimeters. All values must be > 0.
Q1: What is a healthy BMI range?
A: For UK adults: Under 18.5 (underweight), 18.5-24.9 (healthy), 25-29.9 (overweight), 30+ (obese).
Q2: Why use cm instead of feet/inches?
A: This calculator uses metric measurements (cm) which are standard in medical settings in the UK.
Q3: Is BMI accurate for everyone?
A: BMI has limitations - it may overestimate body fat in muscular people and underestimate it in older people with less muscle.
Q4: Should children use this calculator?
A: No, children need age- and sex-specific BMI charts. This is for adults only.
Q5: What's the difference between UK and US BMI?
A: The calculation is identical, but classification categories may vary slightly.