BMI & Overweight Calculator

Calculate your Body Mass Index and determine your weight status

Height (cm)

Weight (kg)

Age (Optional)

Gender (Optional)

📊 BMI Categories

Underweight: < 18.5

Normal weight: 18.5 - 24.9

Overweight: 25.0 - 29.9

Obese: ≥ 30.0

What is BMI and How Does it Determine Overweight?

Body Mass Index (BMI) is a widely used screening tool that calculates your body fat based on your height and weight. It helps determine whether you're underweight, at a normal weight, overweight, or obese, which can indicate potential health risks.

BMI Formula

BMI = weight (kg) ÷ height (m)²
or
BMI = (weight (lbs) ÷ height (inches)²) × 703

Understanding Your BMI Categories

Underweight (BMI < 18.5)

May indicate malnutrition, eating disorders, or other health issues. Consider consulting a healthcare provider.

Normal Weight (BMI 18.5-24.9)

Indicates a healthy weight range with lower risk of chronic diseases.

Overweight (BMI 25.0-29.9)

May increase risk of heart disease, diabetes, and other health conditions.

Obese (BMI ≥ 30.0)

Significantly increases risk of serious health problems including cardiovascular disease.

Limitations of BMI

• Doesn't distinguish between muscle and fat: Athletes may have high BMI due to muscle mass
• Age and gender variations: Body composition changes with age and differs between genders
• Ethnicity differences: Different ethnic groups may have varying health risks at the same BMI
• Body fat distribution: Doesn't account for where fat is stored (belly vs. hips)

How to Use This BMI Calculator

1

Choose Your Units: Select between Metric (kg/cm) or Imperial (lbs/ft-in) units based on your preference.

2

Enter Your Height: Input your height in centimeters or feet and inches. Be as accurate as possible.

3

Enter Your Weight: Input your current weight in kilograms or pounds.

4

Optional Information: Add your age and gender for more personalized recommendations.

5

Calculate & Review: Click calculate to see your BMI, category, and personalized health recommendations.

⚠️ Important Health Disclaimer:

• BMI is a screening tool, not a diagnostic tool
• Consult healthcare professionals for comprehensive health assessment
• Consider other factors like waist circumference, muscle mass, and overall health
• This calculator is for adults aged 18 and older
• Results may not be accurate for pregnant women, athletes, or elderly individuals

🎯 Tips for Healthy Weight Management:

• Focus on balanced nutrition with whole foods
• Include regular physical activity (150+ minutes per week)
• Stay hydrated and get adequate sleep
• Set realistic, sustainable weight goals
• Monitor progress through multiple metrics, not just weight

Overweight Calculator