City size comparison

compared to

Istanbul is about 38 times bigger than Kaiserslautern.

Kaiserslautern is approximately 140 sq km, while Istanbul is approximately 5,343 sq km, making Istanbul 3,725% larger than Kaiserslautern.
Tip: This to-scale comparison of Kaiserslautern vs. Istanbul uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Istanbul vs. Kaiserslautern

Flip Comparison · See true size
See Istanbul on top of Kaiserslautern
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Cost of Living Comparison · 7 categories - 2026 data
Kaiserslautern is 21.8% more expensive than Istanbul
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