City size comparison

compared to

Bangkok is about 50 times bigger than San Mateo.

San Mateo is approximately 31 sq km, while Bangkok is approximately 1,569 sq km, making Bangkok 4,892% larger than San Mateo.
Tip: This to-scale comparison of San Mateo vs. Bangkok uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Bangkok vs. San Mateo

Flip Comparison · See true size
See Bangkok on top of San Mateo
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Cost of Living Comparison · 7 categories - 2026 data
San Mateo is 2.9 times more expensive than Bangkok
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