MacBook Air (11-inch) 11.8 inches x 7.56 inches x 0.68 inches
MacBook Air (13-inch) 12.8 inches x 8.94 inches x 0.68 inches
MacBook Pro (non-Retina, 13-inch) 12.78 inches x 8.94 inches x 0.95 inches
MacBook Pro (Retina, 13-inch) 12.35 inches x 8.62 inches x 0.71 inches
MacBook Pro (Retina, 15-inch) 14.13 inches x 9.73 inches x 0.71 inches
MacBook (12-inch) 11.04 inches x 7.74 inches x 0.52 inches
Please note that BookBook is a hardcover case so it is very unforgiving of excess size. In other words, if your laptop is bigger than the MacBook in any of the three dimensions, it won't fit. There's just absolutely no 'give' to this case. And there are no internal restraints in the BookBook so if your laptop is significantly smaller, it may shift around inside the case.