Free BMI Calculator – Check Your Body Mass Index Online Instantly
BMI Calculator: Determine if you are at an appropriate weight! You can calculate your Body Mass Index using our complimentary BMI calculator below and discover the implications for your health.
⚖️ BMI Calculator
Check your Body Mass Index (BMI) and see if you’re underweight, normal, overweight, or obese.
What Is BMI (Body Mass Index)?
BMI or Body Mass Index is an easy and effective measuring tool that determines your weight and height to categorize you as either underweight, healthy, overweight, or obese. It is a broad health indicator that aids you to assess your physical fitness and general health status.
How to calculate BMI
BMI formula is:
BMI = Weight (kg) / [Height (m)]²
Example:
If your weight is 70 kilogram and your height is 1.75 meter:
BMI = 70 ÷ (1.75 × 1.75) = 22.9
BMI classification chart
| Category | BMI Range |
| Under weight | <18.5 |
| Normal weight | 18.5 – 24.9 |
| Over weight | 25 – 29.9 |
| Obese | >30 |
Why BMI Matters
Your BMI provides you with an essential summary of your health status.
A high BMI can point to an accumulation of fat in the body thus raising the chances of developing heart disease, hypertension, and type 2 diabetes.
A low BMI might suggest that you are underweight and this could result in a compromised immune system and lack of nutrients.
Limitations of BMI
BMI is not measuring tool that fits all, and everybody. Athletic people and other muscular individuals may have high body weight in their case BMI is also high; however, their body fat is very low. This is the reason, that financial medical condition one should look at BMI as a rough guide rather than a final conclusion.