This study was conducted in order to compare between Yamanaka hardness (YA), hand-push type, and penetrometer cone index (PE), on 16 upland sites. Yamanaka hardness had significant correlation with penetrometer cone index. The regression equation was PE=1.80*YA+0.16 (R2=0.91***, N=16) with the applicative YA range of 0.1-1.3 MPa.