The Earth's crust is thinner than the Earth itself.

Here's a breakdown:

* Earth's diameter: Approximately 12,742 kilometers (7,917 miles)

* Crust thickness: Varies, but on average about 30-50 kilometers (19-31 miles) for continental crust and about 5-10 kilometers (3-6 miles) for oceanic crust.

So, the Earth's crust is only a tiny fraction of the Earth's total diameter.