This study was conducted to determine the chemical composition of the urinary calculi observed in the calves which were slaughtered at the Slaughtering House of Meat and Fish Association in Konya. Renal and urinary bladder stones ol the calves were used as the material. Chemical analyses of the stones were performed by using a stone analysis set (Oxford reagent set, manufactured by Lancer Division of Sherwood Medical, Athy, Co. Kildare, Ire-fand, Product No: 9685-032204). The most common types of renal calculi in this survey on chemical analyses were phosphate <53.64 %) followed by Phosphate+carbonate (12.20 %), carbonate (9.76 %), magnesium (7,32 %), fibrin (4.88 %). The stones containing urate, carbonate+oxalate, calcium+oxalate, oxatate+fibrin, phosphate+fibrin constituted a very low percentage (2.44 %) each type of the stones of the samples examined where as in the urinary bladder stones, the most prevalent was phosphate+carbonate (28.22 %) and followed phosphate (20. 52 %), magnesium (12. 83 %), phosphate+carbonate+urate (7.69 %), carbonat and urate (5,13 % each). Oxalate, fibrin, urate+fibrin, phosphate+carbonale+fibrin, phosphate+carbonate+cystine, magnesium+fibrin, phosphate+urate, carbonale+fibrin containing stones were less common (2.56 % each group).