Is pluto smaller than mercury?

But accurate measurements helped scientists conclude that Pluto was the smaller planet. And then in 2006, astronomers voted to remove Pluto as a planet, and so we’ve got back to 8 planets. And once again, Mercury is the smallest planet in the Solar System. read more

The definition of planet includes more than just size. It also includes that the planet's gravitational field, besides existing, has cleared its orbit. read more

Diameter of pluto = 2274 kilometers Diameter of mercury = 4480 kilometers So, mercury is about 2 times the "size" of pluto, in terms of diameter. Volume of pluto = 6157012047 km^3 Volume of mercury = 47079589160 km^3 So, mercury is a little less than 8 times the size of pluto, in terms of volume. read more