What is the ideal weight for a 5 foot 9 inch male who is 46 years old?

It is not possible to answer your question without a little more information. There is no ideal weight for a 46-year-old man (or a person of any age) because weight is related to height and body composition rather than age. What counts more than your body weight is your body fat percentage. To learn more about body fat percentage, see the page link, further down this page, listed under Related Questions Alternatively, please feel free to ask the question again and include more detail.