An apparatus for feeding capsules to a transferring wheel of a filling machine includes a store for containing the capsules. First feeding conduits are spaced apart along a first direction for drawing the capsules from the store and conveying the capsules from the store to first seats of the transferring wheel. Second feeding conduits are spaced apart along the first direction and spaced apart from the first feeding conduits along a second direction substantially orthogonal to the first direction for drawing the capsules from the store and conveying the capsules from the store to second seats of the transferring wheel. A first horizontal pushing arrangement and a first vertical pushing arrangement for receive and orient the capsules coming from the first feeding conduits. A second horizontal pushing arrangement and a second vertical pushing arrangement receive and orient the capsules coming from the second feeding conduits.