BMI Calculator

Find your Body Mass Index (BMI) and see how your weight compares to your height.

BMI is a simple screening tool that gives general context — not a medical diagnosis.

Body Mass Index (BMI) is a quick calculation that uses your height and weight to estimate whether your body weight falls within a general range. While BMI doesn’t measure body fat directly, it’s widely used as a starting point for understanding weight-related metrics.

Use the calculator below to get your BMI and learn what your result may mean.

How to Use the Calculator

Choose US or Metric units
Enter your height and weight
Click Calculate BMI

Your result appears instantly below.

BMI Category Explanations

Underweight

This BMI range is below the general reference range. BMI alone doesn’t explain body composition or overall health.

Normal Weight

This range is commonly used as a general reference for adults. BMI is just one of many health indicators.

Overweight

This range is above the general reference range. BMI does not account for muscle mass or fat distribution.

Obesity

This range is well above the general reference range. BMI alone does not determine health status.

Healthy Weight Range

The healthy weight range shown is based on a BMI between 18.5 and 24.9 for your height. It’s meant to provide general context, not an ideal or target weight.

What Your BMI Means

Your BMI gives a general snapshot of how your weight compares to your height. It does not measure body fat or account for factors like muscle mass, age, or lifestyle.

For that reason, BMI works best as a starting point, not a complete health assessment.

Limitations of BMI (SEO-Friendly)

BMI does not:

Measure body fat percentage
Distinguish between muscle and fat
Reflect fat distribution or fitness level

It’s often used alongside other measures for better context.

Next Steps

Want a clearer picture?

BMI is just one number. To better understand your daily energy needs, you can calculate how many calories your body uses each day.

👉 Calculate Your Daily Calorie Needs

FAQ

What is a BMI calculator?
A BMI calculator estimates Body Mass Index using height and weight to provide general weight categories.

Is BMI accurate?
BMI is useful as a screening tool but does not measure body fat directly.

Does BMI work for athletes?
BMI may overestimate body fat in people with higher muscle mass.

How often should I check BMI?
Occasional checks are usually sufficient unless advised otherwise.

Disclaimer

This BMI calculator is for informational purposes only and is not a medical diagnosis. For personalized advice, consult a qualified healthcare professional.