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We implemented a fortran code that determine fundamental parameters of solartype stars from a list of Fe line equivalent widths. The solution should verify3 conditions in the standard method: ionization equilibrium, excitationequilibrium and independence between metallicity and equivalent widths. Weadded the condition that the input metallicity of the model atmosphere shouldbe similar to the output metallicity derived with equivalent widths.Solar-scaled Kurucz model atmospheres with NEWODF opacities are calculated withan independent program. Parameter files control different details, such as themixing-length parameter, the overshooting, the damping of the lines and theweight factors in the definition of the chi2 function. FUNDPAR derive theuncertainties following 2 methods: the criteria of Gonzalez & Vanture (1998)and the dispersion using the chi2 function. The code use the 2009 version ofthe MOOG program. The results derived with FUNDPAR are in agreement withprevious determinations in the literature. In particular we obtained thefundamental parameters of 58 exoplanet host stars. The program is freelyavailable from the web (http://icate-conicet.gob.ar/saffe/fundpar/).

FUNDPAR: A Program for deriving Fundamental Parameters from Equivalent Widths