Saturn is the second largest planet in the Solar System, with an equatorial diameter of about 74,897 miles (120,500 kilometers), which is roughly nine times wider than Earth

. Its polar diameter is smaller, about 67,560 miles (108,728 kilometers), making Saturn the most oblate (flattened at the poles) planet in the Solar System due to its rapid rotation

. In terms of radius, Saturn's average radius is about nine times that of Earth, approximately 36,184 miles (58,232 kilometers)

. Because of its size, about 764 Earths could fit inside Saturn

. Saturn's volume is about 766 times that of Earth, and it has a mass about 95 times greater than Earth's, although its density is much lower-only about 0.687 grams per cubic centimeter, making it less dense than water

. In summary:

• Equatorial diameter: ~74,897 miles (120,500 km)
• Polar diameter: ~67,560 miles (108,728 km)
• Average radius: ~36,184 miles (58,232 km)
• Volume: ~766 times Earth
• Mass: ~95 times Earth
• Density: ~0.687 g/cm³ (less than water)

Saturn's large size and distinctive oblate shape are due to its rapid rotation and gaseous composition, primarily hydrogen and helium