This experiment, using right-handed and right-eyed subjects under three viewing conditions-binocular, monocular right and monocular Left-examined their placement of the fulcrum of visual balance between paired, right-left, squares. (1) The psychological balance point, under all three viewing conditions, tended to be placed towards the center from the physically expected point of balance, (2) Significant differences in overestimating the right-hand square were shown under binocular and monocular left (non-dominant eye) viewing conditions but were not shown under monocular right (dominant eye) viewing condition. (3) Under the binocular viewing condition, even when the difference in size between the right-left squares was increased, the distances between the psychological and physically expected balance points did not show a significant difference, however under monocular, in comparison with under the binocular viewing condition, as the difference in size of the right-left squares was increased the difference in right-left visual weight tended to be overestimated, and as the difference between the two squares was decreased the difference in visual weight tended to be underestimated. (4) Individual differences were shown. It was shown that binocular balance point could not be predicted in any straightforward fashion from monocular balance points.