Bmi Calculator Uk Nhs

BMI Formula:

\[ \text{BMI} = \frac{W}{H^2} \]

BMI (kg/m²):

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1. What is BMI?

Definition: Body Mass Index (BMI) is a measure that uses your height and weight to work out if your weight is healthy.

Purpose: The NHS BMI calculator helps assess whether you're a healthy weight for your height, according to UK standards.

2. How Does the BMI Calculator Work?

The calculator uses the formula:

\[ \text{BMI} = \frac{\text{Weight (kg)}}{\text{Height (m)}^2} \]

Where:

BMI — Body Mass Index (kg/m²)
Weight — Your weight in kilograms
Height — Your height in meters

3. NHS BMI Categories

Classification:

Below 18.5 — Underweight
18.5-24.9 — Healthy weight
25-29.9 — Overweight
30 and above — Obese

4. Using the Calculator

Tips: Enter your weight in kilograms and height in meters. For height, you can convert from cm to m by dividing by 100 (e.g., 175cm = 1.75m).

5. Frequently Asked Questions (FAQ)

Q1: Is BMI accurate for everyone?
A: BMI is a useful screening tool but doesn't account for muscle mass. Athletes may have high BMI without excess fat.

Q2: What's a healthy BMI according to NHS?
A: The ideal range is 18.5 to 24.9 for most adults.

Q3: Should children use this calculator?
A: No, children need age and sex-specific BMI charts. See your GP for child BMI assessment.

Q4: Where can I get more health advice?
A: Visit NHS BMI Calculator for official guidance.

Q5: What if my BMI is outside the healthy range?
A: Consult your GP for personalized advice on achieving a healthy weight.