Calculate BMI.
You have a BMI below 18.5. You have a weight that related to your length says that you are under weight. One says that if BMI is below 18.0 you should contact your health service for professional help.
You have a BMI between 18.5 - 24.9. You have a weight that in relation to your length says that you are normal weight.
You have a BMI between 25.0 - 29.9. You have a weight that in relation to your length says that you are overweight. If you are above 27.0 one says that risk for hypertension, high blood fats and diabetes 2 is raised.
You have a BMI above 30.0. You have a weight that in relation to your lenght says that you are obese. Risk for hypertension, high blood fats and diabetes 2 is high and you need to lose weight.