BMI Calculator – Calculate Your Body Mass Index Instantly

Use our free Body Mass Index (BMI) Calculator to check your body weight category. Get instant results and learn whether you’re underweight, normal, overweight, or obese.

What is a BMI Calculator?

A Body Mass Index (BMI) Calculator is an online tool that helps you measure your body fat based on height and weight. It’s one of the easiest ways to check if your weight is within a healthy range according to the World Health Organization (WHO).

How to Use the BMI Calculator?

  1. Enter your height in centimeters (cm).
  2. Enter your weight in kilograms (kg).
  3. Click on “Calculate BMI” to get instant results.
  4. See your BMI value and the corresponding weight category.

Why Use Tools Kit BMI Calculator?

  • Accurate and instant BMI calculation.
  • Clean and easy-to-use interface.
  • Fully mobile-friendly and privacy-safe.
  • Completely free — no signup or ads.

Frequently Asked Questions (FAQs)

1. What is a healthy BMI range?

According to WHO, a healthy BMI range is between 18.5 and 24.9.

2. Is BMI the same for men and women?

Yes, BMI is calculated the same way for both men and women — but body composition may differ.

3. Can I use this BMI Calculator on mobile?

Absolutely! Tools Kit’s BMI Calculator is fully responsive and works on any device.