Below you can see the front view size comparison of Nikon D7200 and Canon 80D. Nikon D7200 is 3mm narrower and 3mm thinner than Canon 80D but it is also 2mm taller.
Nikon D7200 vs Canon 80D - Front View
Nikon D7200 vs Canon 80D - Top View
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.
Camera Size Comparison
Select Two Cameras for Size Comparison