Sydney is about 11 times smaller than Queens.

Queens is approximately 282 sq km, while Sydney is approximately 27 sq km, making Sydney 9.48% the size of Queens.
Tip: This to-scale comparison of Queens vs. Sydney uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.