To avoid BMI misclassification, I recommend the following options
1 BODY-FAT TESTING
True fitness fanatics go with hydrostatic weighing, considered the gold standard of body-fat testing. This test requires that your body be submerged in a special water tank. The theory is: Bone and muscle are more dense in water; therefore, a person with less body fat will weigh more in water. On the other hand, a person with high body fat and less muscle mass will weigh less in water. Years ago, I did this test at Temple University. It is likely offered at other area universities and hospitals, too. While not price prohibitive, this procedure will likely cost $150 to $200.
2 ULTRASOUND, X-RAY AND DEXA
These scans are the New Age way to have your body fat tested. They're considered very accurate but will expose you to irradiation and pinch your wallet.
If you want to keep it real, stand in front of a mirror in the nude and jump up and down. If anything's moving that shouldn't, that's your cue to shed a few pounds.
The pinch an inch test never fails to give immediate feedback on whether we could stand to lose a few.