The utilitarian paradigm of moral research is one of the most widespread currents of philosophical ethics in the world. The essay first focuses on the formulation of J. Bentham (an author who helps to understand this ethical perspective also in his followers) and on its fundamental elements: teleology, psychological hedonism, identification of the good with pleasure, principle of utility, consequentialism. Then it sets out the main forms of utilitarianism and consequentialism and their ways of dealing with justice, equality, freedom and rights. Finally, he criticizes utilitarianism regarding the calculation of the consequences and the moral weight of the consequences in the evaluation of human actions.