The dielectric constant of a condensed system is a key factor in determining the strength of electrostatic interactions. Simulations with fixed-charge electrostatic models are notorious for underestimating the dielectric constants of nonpolar liquids, because this derives almost entirely from electronic polarization. In contrast, the dielectric constants of polar liquids derive largely from orientational polarizability, which can be captured reasonably well by a force field that lacks an explicit treatment of electronic polarization. Here, we computed the static dielectric constants of liquids of varying polarity using a dipole fluctuation approach 19,20,73 :