Melbourne is about 37 times bigger than Paris.

Paris is approximately 105 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 3,615% larger than Paris.
Tip: This to-scale comparison of Paris vs. Melbourne 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.