What is your Ideal Weight? Many experts differ on the finer points, but they tend to agree to general ranges. On another page of this website, you can calculate your Body Mass Index, or BMI. By using the same input data here, this calculator can give you your Ideal Weight according to five different schools of thought. Consider this a healthy target weight, the appropriate weight for someone of your height, age and gender. Being the proper weight is a key factor in staying healthier longer.