Manitoba is about 1.2 times smaller than New South Wales.

New South Wales is approximately 801,150 km² (309,326 sq mi), while Manitoba is approximately 647,797 km² (250,116 sq mi), making Manitoba 80.86% the size of New South Wales.
Tip: This to-scale comparison of New South Wales vs. Manitoba uses the Mercator projection, which distorts the size of regions near the poles.
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