This work presents, initially a review about the theoretical basis of the applicability of the wave equation and of dynamic formulas in the estimate of load capacity in piles. As experimental part of this work, it was used, results obtained from twenty nine dynamic loading tests (CAPWAP), carried in out on several types of piles: Continuous flight auger, grout intruded in place; reinforced concrete and steel piles. Was analyzed the efficiency of the energy transferred (ETH), the maximum value of the tension, the maximum value of the mobilized pile resistance, the integrity of the pile and the influence of damping (Jc). Furthermore, dynamic formulas were used to calculate the prediction of the resistance mobilized of the piles and the results were compared with the values of the CAPWAP. These dynamic formulas were analyzed: The formula of Weisbach, Hiley, Danes, Janbu, Brix, Holandeses and Engineering News Record. For the purpose to validate a possible applicability of dynamic formulas in the prediction of bored piles, mobilized resistance was calculated following the same procedure of driven piles. These results were optimized by comparing them with the values of CAPWAP through a statistical analysis simple. In this study it was found that by reviewing the coefficients (including the application of the tool solver for the Hiley formula), that the Danish, Hiley and Weisbach formulas have a better approximation to the CAPWAP values for the case of piles driven, at the same time as in the case of bored piles prediction values obtained dispersed.