What is out there that accuratly calcuates body fat (BMI)?

How can a web calculator tell how tone or flaby I am? What do I need for a daily accurate reading?

Public Comments

1. the BMI use statistical data while body fat analysis is an actual measurement of your body composition. body fat analysis is a far better tool to determine the current health status.
2. As the other responder said, BMI and body fat are two totally separate things. At 5'9" and 205 pounds, I should have floated like a cork, but I sank.