The purpose of this study was to clarify whether the estimation formula for height (Ht) is suitable for correcting data from lung function tests. We collected fundamental data in healthy young adults to investigate whether the data was correlated to the actual pulmonary functions or not. The subjects were 157 healthy young persons (59 males and 98 females). We measured arm span (AS), length of upper arm (UA), and the right second digit proximal phalangeal length (RII). The values of AS, UA, RII for males and females correlated positively and significantly with each other. Next, the vital capacity (VC) and forced expiratory volume per second (FEV1.0) were determined in 70 females and 35 males in all subjects, by the electrospirometer. In both sexes, correlation coefficients between VC, FEV1.0 and Ht was more than 0.6, but correlation coefficients between VC and the sizes of body parts was 0.6 or less. These results suggest that height estimation derived from RII, obtained from the upper extremities, was useful. However, the accuracy of estimation for VC and FEV1.0 based on the lengths of body parts was low because their correlation coefficients were as low as 0.6 or less.