Seoul is about 2.3 times bigger than Lincoln.

Lincoln (map shows its 45 named neighbourhoods; the area covers the whole city) is approximately 262 sq km, while Seoul is approximately 605 sq km, making Seoul 131% larger than Lincoln.
Tip: This to-scale comparison of Lincoln vs. Seoul 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.