BMI Calculator
Calculate your BMI and find out if you are within normal weight
ℹ️ About This Tool
The BMI Calculator is a free and accurate tool that helps you assess your weight relative to your height.
Benefits of using the calculator:
- Fast and accurate calculation: Get your BMI instantly
- International standards: Uses WHO standards
- Weight classification: Know your weight category
- Health tips: Get recommendations to improve your health
- 100% free: Unlimited use
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Frequently Asked Questions
BMI is a measure used to assess whether your weight is healthy relative to your height. It is calculated by dividing weight in kg by height in meters squared. It is a guideline indicator, not a medical diagnosis.
Normal BMI ranges from 18.5 to 24.9. Below 18.5 is underweight, 25-29.9 is overweight, 30-34.9 is Class I obesity, 35-39.9 is Class II obesity, 40+ is Class III (severe) obesity.
BMI does not account for body composition (muscle vs fat ratio). Athletes may show high BMI despite having low body fat. Elderly and children have different criteria.
To lower high BMI: reduce calories by 500 per day, exercise at least 150 minutes weekly, eat more vegetables and fruits, reduce sugars and fried foods, and drink 8 glasses of water daily.
The obesity rate in Saudi Arabia is about 35% of adults according to MOH statistics, making it one of the highest globally. Vision 2030 aims to reduce this rate through preventive health programs.
The BMI formula is the same for adults over 20 regardless of gender. However, women typically have higher body fat at the same BMI. Children and teens use special BMI-for-age charts.