How many times smaller is a toothpick to a pencil?

Because not all toothpicks and not all pencils are of a uniform size, the answer varies depending on the particular toothpick and particular pencil.

As an example, let's suppose that the pencil is 6 inches long, and that the toothpick is 2. The toothpick is, in this case, 2/6 the size of the pencil, or (reducing the fraction) 1/3 its size, which is approximately 33%.