South Bend is about 1.5 times smaller than Amsterdam.

Amsterdam is approximately 166 sq km, while South Bend (map shows its 30 named neighbourhoods; the area covers the whole city) is approximately 109 sq km, making South Bend 65.46% the size of Amsterdam.
Tip: This to-scale comparison of Amsterdam vs. South Bend 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.