We show that the semiclassical entropy of D−dimensional rotating
(an)isotropic black holes with planar horizon can be successfully computed according to
a Cardy-like formula. This formula does not refer to any central charges but instead involves
the vacuum energy which is identified with a gravitational bulk soliton. The soliton
is obtained from the non-rotating black hole solution by means of a double analytic continuation.
The robustness of the Cardy-like formula is tested with numerous and varied
examples, including AdS, Lifshitz and hyperscaling violation planar black holes.