This study aims to creating an application in the widespread Excel spreadsheet program, using the common feed materials used in poultry rations include maize, wheat, barley, soybean meal, wheat bran, sunflower oil, protein concentrate, limestone, salt, diCalcium Phosphate, premix of vitamins and minerals, anti-coccidial, where the function property in Excel program, especially the sum - product function, can be used to create an application for formulating rations in a trial and error method until reaching the desired goal in terms of its nutrient content: (dry matter, crude protein, lysine, methionine, methionine and cysteine, calcium, available phosphorus, crude fiber, ether extract, linoleic acid, chlorine, sodium, arginine, phenylalanine, phenylalanine and tyrosine, threonine, tryptophan, leucine, Valine, histidine, glycine, glycine and Serine, as well as soluble carbohydrates, ash)%, in addition to estimate the cost of the ration.