If you're having to ask the question, that suggests you already know the answer. However, without details such as your weight, height, age and gender, it is impossible to tell whether you are overweight, but you can easily find out for yourself.
This one is for the National Health Service in the UK, but it allows you to input metric or imperial measurements. The site will then tell you what your BMI is, and whether it is in the healthy range or not. Doctors use a patient's BMI to establish if they are underweight, overweight, or healthy weight.
Does the Body Mass Index apply to everyone?
The BMI is a good, if rough, guide to a person's correct weight for their height. There is concern that the results become distorted if a person is very short, or very tall, or unusually muscular, as a weightlifter or bodybuilder light be. But BMI does give a reasonable guide to their ideal 'shape.' A doctor will take more than just BMI into consideration if giving you a health check.
This film tells you more about BMI: