حاسبة مؤشر كتلة الجسم مجانية عبر الإنترنت | Fairmont AI

احسب مؤشر كتلة جسمك فوراً. أدخل طولك ووزنك لمعرفة مؤشرك الصحي. مجاني.

Our free BMI Calculator helps you instantly calculate your Body Mass Index using your height and weight. BMI is a widely used screening tool to categorize weight status and identify potential health risks. Whether you prefer metric (cm/kg) or imperial (ft/lb) units, our calculator handles both. Results are displayed with a clear category badge and visual scale — all processed locally in your browser for complete privacy.

How to Calculate Your BMI

  1. Choose Your Unit System: Select Metric (centimeters and kilograms) or Imperial (feet, inches, and pounds) depending on your preference.
  2. Enter Your Height and Weight: Input your height and weight in the respective fields. Double-check for accuracy to get the most precise result.
  3. Click Calculate BMI: Your BMI value will appear instantly along with your weight category (Underweight, Normal, Overweight, or Obese) and a visual BMI scale.

Frequently Asked Questions

What is BMI?

BMI (Body Mass Index) is a numerical value calculated from your height and weight. It is used to screen for weight categories that may lead to health problems.

What is a healthy BMI?

For adults, a BMI between 18.5 and 24.9 is considered normal or healthy weight. Below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is obese.

Is BMI accurate?

BMI is a useful screening tool but has limitations. It doesn't account for muscle mass, bone density, or fat distribution. Athletes with high muscle mass may have a high BMI without excess fat.

Does BMI differ for men and women?

The BMI formula is the same for both, but body fat percentage interpretation can differ. Women naturally have more body fat than men at the same BMI.

Is BMI suitable for children?

BMI for children uses age and sex-specific percentile charts, not the same adult thresholds. This calculator is designed for adults 18 and older.

What is the BMI formula?

BMI = weight (kg) ÷ height (m)². In imperial: BMI = (weight in lbs × 703) ÷ height (in)².

Can I have a normal BMI but still be unhealthy?

Yes. BMI doesn't measure where fat is stored. People with normal BMI can still have metabolic issues. Consult a healthcare provider for a complete assessment.

How often should I check my BMI?

There's no set frequency. Many people check monthly or quarterly when tracking weight management goals. Consult a doctor for personalized advice.