Grand Rapids is about 4.3 times bigger than Sydney.

Sydney is approximately 27 sq km, while Grand Rapids is approximately 116 sq km, making Grand Rapids 334% larger than Sydney.
Tip: This to-scale comparison of Sydney vs. Grand Rapids 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.