When it comes to mini fridges, clearance is key. The fridge needs to be able to circulate air around it in order to keep cool, so you'll need to make sure there's at least a few inches of space on all sides. The exact amount of clearance depends on the model of fridge you have, so be sure to check your manual for specific instructions. In general, though, most mini fridges will need at least four inches of clearance on all sides in order to function properly.