  We present results from the theoretical modelling of the observed B,V light
curves of 14 RR Lyrae stars in the Large Magellanic Cloud. The sample includes
7 fundamental and 7 first overtone pulsators covering the metallicity range
from -2.12 to -0.79 dex in [Fe/H], with average value of -1.54 dex. Masses,
intrinsic luminosities, effective temperatures, and reddenings were derived by
fitting high accuracy multiband light curves available for these RR Lyrae stars
to nonlinear convective pulsation models. Individual distance moduli were
determined for each variable, they lead to an average distance modulus for the
Large Magellanic Cloud of (m-M)o= 18.54 +/-0.02 (sigm= 0.09 mag, standard
deviation of the average), in good agreement with the "long" astronomical
distance scale.
