Melbourne is about 33 times bigger than Dublin.

Dublin is approximately 118 sq km, while Melbourne (the 27 councils of metropolitan Melbourne, without the Yarra Ranges, Cardinia, Mornington Peninsula and Nillumbik) is approximately 3,915 sq km, making Melbourne 3,224% larger than Dublin.
Tip: This to-scale comparison of Dublin vs. Melbourne uses the Mercator projection, which distorts the size of regions near the poles.
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