In fact, my Healthy Body Calculator® does consider body builders since I have worked with more than a few, but you need to know your current body fat percent. If you are 24%, then you will still get a healthy weight range of 155 – 189 pounds and a high BMI calculation because 24% is too high for a person 5 feet 11 inches weighing 250 – 260 pounds. Would highly recommend you get tested from someone who is adequately trained and very experienced in body fat testing. Try an exercise physiologist or sports dietitian. There are many flaws to the electrical impedance method, especially dehydration. Read my sports nutrition topic for more info about body fat testing.
BMI is an estimate of body fat and only correlates for average persons, not lean athletes. As long as you continue training and maintain a body fat under the normal range for males, then BMI will not provide you with meaningful results. The problem comes when a body builder or other strength trained athlete like football players, stop training and lose muscle while gaining fat without losing weight. That would be unhealthy and BMI would then be meaningful to an out of training athlete.
With regards to the protein you want in your diet, the calculator can handle that too. One gram of protein per kilogram of body weight (2.2 lbs) is not unreasonable. One gram of protein per pound of body weight may be unless you are eating at least 5000 calories. Do you eat that much? If yes, then 250 grams of protein would be within reason. The current research on strength trained athletes is that at most they need 1.5 grams of protein per kilogram (2.2 pounds) of body weight. At that highest level, the most protein you would need is 170 grams of protein.
