This work is intended to measure how real convergence observed in Portugal in the 1990s may have contributed to explain the inflation rate differential recorded during this period. This quantification is developed through the simulation of a two-sector neoclassical growth model. This model estimates that the differential associated with the real convergence process stood probably between 1 and 2 percentage points in 1990 and between 0.4 and 0.6 percentage points in 1999.