Vienna is about 36 times smaller than Timor-Leste.

Timor-Leste is approximately 14,874 sq km, while Vienna is approximately 415 sq km, making Vienna 2.79% the size of Timor-Leste.
Tip: This to-scale comparison of Timor-Leste vs. Vienna uses the Mercator projection, which distorts the size of regions near the poles.