I assume you mean the BMI charts? It's a well known failing that they do not take into account the amount of muscle and frame.
You would probably be better checking some of the fitness and bodybuilding sites for recommendations that come from body fat measurements than going by the standard BMI listings.
Getting to a weight is one thing, being comfortable and able to maintain there while still enjoying life is another. Be led by what feels right for you, not some arbritrary range of numbers defined by WHO and the insurance companies.