With this online tool you can calculate your Body mass index (BMI). This can give you an indication of whether your weight is too high or too low.
What the BMI is
The BMI is just a measure that can be used to evaluate a person's body weight in relation to their height. Many people want to reach a certain BMI value, which is seen as a personal ideal. In reality, however, one always has to take individual factors into account and should only regard the BMI as a very rough guide to decide whether one is possibly overweight or underweight. For example, the BMI does not take into account how much muscle mass there is or how high the exact body fat percentage is. More information can be found here:
MORE INFORMATION ABOUT BMI