Pluto is smaller than the USA.
The greatest distance across the contiguous United States is nearly 2,900 miles (from Northern California to Maine). By the best current estimates, Pluto is just over 1400 miles across, less than half the width of the U.S. Certainly in size it is much smaller than any major planet, thats why a few years ago it was “demoted” from full planet status. It is now known as a “dwarf planet.”