📝 Complete Guide to BMI in the UK
This BMI calculator UK helps you understand your Body Mass Index using the NHS-recommended metric system. BMI is a screening tool used to assess whether you're at a healthy weight for your height.
📊 What is BMI?
BMI (Body Mass Index) is a measure that uses your height and weight to work out if your weight is healthy. The formula is:
- BMI = weight (kg) ÷ height (m)²
- Example: 70kg ÷ (1.75m × 1.75m) = 22.9 BMI
- NHS Categories: Underweight (<18.5), Healthy (18.5-24.9), Overweight (25-29.9), Obese (30-39.9), Severely Obese (40+)
📈 UK BMI Statistics (2026)
- Average UK BMI: 27.5 (overweight)
- 26% of UK adults are obese
- 40% of UK adults are overweight
- 75% of UK adults are overweight or obese
- Obesity rates higher in North England
⚡ Health Risks by BMI Category
- Underweight: Nutritional deficiencies, weakened immune system
- Healthy: Lower risk of chronic diseases
- Overweight: Increased risk of heart disease, diabetes
- Obese: Higher risk of type 2 diabetes, stroke, cancer
- Severely Obese: Very high risk of health complications
💡 How to Improve Your BMI
- Healthy Eating: Balanced diet with fruits, vegetables, whole grains
- Regular Exercise: 150 minutes moderate activity weekly
- Portion Control: Watch portion sizes
- Stay Hydrated: Drink water instead of sugary drinks
- Sleep Well: 7-9 hours per night
- Reduce Stress: Stress management techniques
⚠️ Important Considerations
- BMI is a screening tool, not diagnostic
- May not be accurate for athletes, bodybuilders
- Pregnant women should not use BMI
- Older adults may have different health standards
- Always consult your GP for personalised advice