Mercury is smaller than Titan, but Titan is a moon, not a planet.
Titan is significantly smaller than Earth.
Generally speaking moons are smaller than planets. The only exceptions are the two largest moons in this solar system, Ganymede and Titan, which are larger than Mercury, the smallest planet in the solar system.
smaller
No. All of the objects in out solar system labeled as dwarf planets are smaller than the smallest of the planets. The gas planets are the largest planets.
Overall, Titan is smaller than Earth. Titan has a diameter of about 5,151 kilometers, making it the second largest moon in our solar system. Earth, on the other hand, has a diameter of about 12,742 kilometers.
Titan is bigger than Earth's moon by 1,676 km
Size is not the differentiation of whether something is a planet or moon. The difference is what ir orbits. A planet orbits a star, and only a star. A moon orbits a planet. A moon is always smaller than the planet it belongs to, but some large moons are bigger than small planets. Ganymede and Titan are both larger than the planet Mercury, but are still much smaller than than planets they orbit, Jupiter and Saturn.
the gas planets are bigger than the rocky planets
The inner planets are smaller than the outer planets.
Objects that are smaller than planets are called "dwarf planets"; even smaller objects are called "asteroids".
dwarf planets are smaller than regular planets