Compare the size of the earth with that of the sun, the milky way galaxy, and the entire universe.

Earth=12,000Km

Sun is around 15,000,000Km

Milky way, it is 100,000 light years in size (diameter)

Observable universe, the visible object is 46 billion light year. (From center of earth)

Explanation:

If we look at the data, the diameter of the earth is approximately 12,000Km and diameter if the sun is around 15,000,000Km which is greater than 100 times that of the earth. If we look at the size of milky way, it is 100,000 light years in size (diameter) and 1 light year is , it means that milky way is around is 10^14 times bigger than our home planet. If we look at the observable universe, the visible object is 46 billion light year from earth's center which is around and it is around the size of earth.

Note: Data might contradict with some texts but approximately values are same.