BMI Calculator

Calculate your Body Mass Index and check your health status

Your Details

BMI Results

Your BMI
24.2
Category
Normal weight

Health Information

Ideal Weight Range
53.5 - 72 kg

BMI Categories

UnderweightBelow 18.5
Normal weight18.5 - 24.9
Overweight25 - 29.9
Obese30 and above

Health Disclaimer

This BMI calculator provides general health information only and should not replace professional medical advice. BMI may not accurately reflect health status for athletes, elderly, or individuals with specific medical conditions. Please consult a healthcare professional for personalized health guidance.

What is BMI Calculator?

A BMI (Body Mass Index) calculator determines your body mass index by dividing your weight by the square of your height. It's a widely used screening tool to categorize individuals as underweight, normal weight, overweight, or obese.

Essential for health assessments, fitness planning, medical evaluations, and understanding your weight status relative to health recommendations.

BMI Formula & Calculation

Metric Formula

BMI = Weight (kg) ÷ Height (m)²

Imperial Formula

BMI = (Weight (lbs) ÷ Height (inches)²) × 703

Example Calculation

Person weighing 70kg with height 1.75m: BMI = 70 ÷ (1.75)² = 22.9

BMI Categories & Health Implications

Underweight (Below 18.5)

May indicate malnutrition, eating disorders, or underlying health conditions. Consider consulting a healthcare provider.

Normal Weight (18.5-24.9)

Indicates healthy weight range associated with lowest risk of weight-related health problems.

Overweight (25-29.9)

Increased risk of cardiovascular disease, diabetes, and other health conditions. Lifestyle changes recommended.

Obese (30 and above)

Significantly increased health risks. Medical consultation recommended for weight management strategies.

Frequently Asked Questions

Is BMI accurate for everyone?

BMI doesn't distinguish between muscle and fat mass. Athletes with high muscle mass may have high BMI but low body fat.

What's a healthy BMI range?

Generally 18.5-24.9 is considered healthy, but optimal ranges may vary by age, ethnicity, and individual health factors.

How often should I check my BMI?

Monthly or quarterly monitoring is sufficient for most people, unless actively trying to lose or gain weight under medical supervision.