What is a healthy BMI range?

A healthy BMI range for adults is typically between 18.5 and 24.9. This range is associated with the lowest risk of health problems, though individual health factors should also be considered.

Is BMI a reliable health indicator?

BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat mass, and may not be accurate for athletes, elderly, or certain ethnic groups. It's best used alongside other health assessments.

How often should I check my BMI?

For general health monitoring, checking your BMI monthly or quarterly is sufficient. If you're actively trying to lose or gain weight, weekly checks can help track progress, but daily fluctuations are normal.

BMI Calculator
Body Mass Index

Body Mass Index (BMI) is a widely used health screening tool that calculates your body weight relative to your height. Our free BMI calculator helps you determine if you're in a healthy weight range and provides instant visual results with personalized health insights.

Calculate your Body Mass Index instantly and get personalized health insights

Calculate Your BMI

Choose Unit System

Metric (kg/cm)

Imperial (lbs/inch)

Weight (kg)

30 kg300 kg

Height (cm)

100 cm250 cm

📊

Adjust the sliders to calculate BMI

BMI Formula

Metric System

BMI = weight (kg) / [height (m)]²

Weight in kilograms divided by height in meters squared

Imperial System

BMI = (weight (lb) / [height (in)]²) × 703

Weight in pounds divided by height in inches squared, multiplied by 703

What is BMI?

Body Mass Index (BMI) is a simple calculation that uses your height and weight to determine if you're in a healthy weight range. It's widely used by healthcare professionals as a screening tool to identify potential weight-related health issues.

BMI provides a quick and easy way to categorize individuals into different weight categories, helping to assess the risk of developing health conditions associated with being underweight, overweight, or obese.

While BMI is a useful tool, it's important to remember that it doesn't directly measure body fat or muscle mass. For a complete health assessment, consult with healthcare professionals who can consider additional factors like body composition, lifestyle, and medical history.

BMI Ranges & Categories

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Underweight

Below 18.5

✅

Normal weight

18.5 - 24.9

⚠️

Overweight

25.0 - 29.9

🚨

Obese

30.0 and above

Important Notes:

BMI ranges are based on adult populations and may not apply to children or adolescents
Athletes with high muscle mass may have higher BMI values despite being healthy
Elderly individuals may have different healthy BMI ranges
Always consult healthcare professionals for personalized health advice

Frequently Asked Questions

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BMI CalculatorBody Mass Index