# If the earth is a grain of sand what is the universe equivalent to?

##### 1 Answer

Jul 7, 2016

The observable universe would be smaller than the volume of the Milky Way but far larger than the largest known star.

#### Explanation:

**Let's start with the volume of a grain of rice.**

**Now, let's get the Earth's volume:**

**We need the volume of the observable universe:**

**Set up proportions:**

This is about 26,916 cubic light years.