A portable calf exercise device includes a base having a generally planar bottom surface configured to rest flat on the floor surface. The upper end of the base supports a plurality of elevated platform surfaces that culminate at a back panel and extend across the base to terminate at a front face. Each of platform surfaces are configured to support purchase of either one or both of the sole of a portion of a person's foot. A person may step on to one or more of the elevated platform surfaces to perform exercises that subject the foot to plantar flexion, extension, as well as inversion and eversion.