In the paper is proposed a new method to calculate an cardiovascular risk index. The method is based on the fuzzy logic. The process parameters are defined including their formulation in terms of fuzzy rules. The index, called individual total cardiovascular risk (TIIR)index, limited to 39 different clinical profiles was compared with two probabilistic risk indices. The first derived from the Italian “heart project” and the second from Framingham . Despite the diversity of the approach and of the elementary risk factors number, the TIIR shows a linear correlation coefficient with more than 92% with the first and 88% with the second index.