Lake Superior is about 1.2 times bigger than Tasmania.

Tasmania is approximately 68,401 km² (26,410 sq mi), while Lake Superior is approximately 82,350 km² (31,795 sq mi), making Lake Superior 20% larger than Tasmania.
Tip: This to-scale comparison of Tasmania vs. Lake Superior 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.