Pluto has a diameter of 1,430 miles, which is six times less than that of Earth. Pluto is smaller than the Earth's moon. In 2006, Pluto was stripped of its status as one of the Solar System's nine planets, and given a new label as the largest "dwarf planet."
Universe Today indicates that Pluto's volume is just 0.59 percent of the Earth's, and that Pluto could fit inside the Earth 170 times. Pluto's surface area is about 3.3 percent that of Earth's, and its mass is just 0.2 percent of the Earth's. Pluto has a much lower gravity than Earth, as well.