US Navy Method for Males is a fast and easy calculation with circumferrences to test your body fat using tape. All measurements should be done in cm,measured to the nearest mm.
J. Hodgdon,M. Beckett. "Prediction of percent body fat for U.S. navy men and women from body circumferences and height." Reports No. 84-29 and 84-11. Naval Health Research Center,San Diego,California 1984.