On the success of the business has a number of external factors that are heavily predictable and businessman uncontrollable. It is no exception agricultural sector, which will be signed by both the natural and climatic conditions, e.g. the price development. Help in managerial decision making and identifying reserves in the enterprise can farmers various tools (software) provided free of charge online mode. „FarmProfit“ is economical software used to calculate the basic economic indicators of the livestock and crop production. The program enables a simple way to calculate actual or expected profitability of production of selected agricultural commodities. Increase economic efficiency in milk production can be optimal structure of dairy cattle herds, which will help farmers to resolve simple tool called „structure prediction herd of dairy cattle.“ Knowing the value of dairy cattle is essential for optimal decision making in the management of the dairy farm. This information has significant economic implications because decides to replace dairy heifers in the herd replacement, thus affecting profitability. Tool „Ecomic value of dairy cows” predicts economic value of cow according to the given input information and shows total value of cows and also the values of all the major components included in the calculations.