With this BMI Calculator, you can calculate and evaluate your BMI (Body Mass Index) simply by entering age, gender, height and weight. It is designed based on the WHO BMI classification and supports both metric and imperial units.


BMI Calculator is free app that allows you to monitor BMI and percentage of fat in your body.
Ideal weight - app calculates the ideal weight you should gain.

All measurements use information about your body: gender, age, height and weight. App is designed for people of different ages and supports for both metric and imperial. Track your BMI and stay healthy!

BMI Calculator classification

BMI of < 18.5
A BMI of less than 18.5 indicates that you are underweight, so you may need to put on some weight. You are recommended to ask your doctor or a dietitian for advice.


BMI of 18.5–24.9
A BMI of 18.5–24.9 indicates that you are at a healthy weight for your height. By maintaining a healthy weight, you lower your risk of developing serious health problems.

BMI of 25–29.9
A BMI of 25–29.9 indicates that you are slightly overweight. You may be advised to lose some weight for health reasons. You are recommended to talk to your doctor or a dietitian for advice.

BMI of > 30
A BMI of over 30 indicates that you are heavily overweight. Your health may be at risk if you do not lose weight. You are recommended to talk to your doctor or a dietitian for advice.

More information about Body Mass Index classification which is used by our BMI Calculator App is available on the website of the World Health Organization (WHO).