Body Mass Index (BMI) is a simple measurement that compares your height and weight. It helps determine whether you are underweight, at a healthy weight, overweight, or obese, making it a useful indicator of overall health.

Your BMI is calculated using the formula Weight (kg) ÷ Height² (m²). Our calculator performs this calculation instantly and accurately.

A BMI between 18.5 and 24.9 is generally considered healthy for most adults.

BMI is an excellent screening tool, but it does not measure body fat directly. Athletes and people with high muscle mass may have a higher BMI while still being healthy.

If your BMI is above the healthy range, consider improving your diet, increasing physical activity, and consulting a healthcare professional for personalized advice.

Focus on eating nutrient-rich foods, increasing healthy calories, and speaking with a doctor if you experience unexpected weight loss.

Yes. The BMI formula is the same for both men and women, although body composition may differ.

This calculator is intended for adults. Children and teenagers should use BMI percentile charts based on their age and sex.

Checking your BMI every 2–3 months or after significant weight changes is usually sufficient for tracking your progress.

Yes! This BMI Calculator is completely free and can be used as many times as you want without any registration.