City size comparison

compared to

San Diego is about 5 times bigger than Honolulu.

Honolulu is approximately 157 sq km, while San Diego is approximately 844 sq km, making San Diego 439% larger than Honolulu.
Tip: This to-scale comparison of Honolulu vs. San Diego uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: San Diego vs. Honolulu
Flip Comparison · See true size
See San Diego on top of Honolulu
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Cost of Living Comparison · 7 categories - 2026 data
Honolulu is 8.4% more expensive than San Diego
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