Manitoba is about 1.5 times smaller than British Columbia.

British Columbia is approximately 944,735 km² (364,764 sq mi), while Manitoba is approximately 647,797 km² (250,116 sq mi), making Manitoba 68.57% the size of British Columbia.
Tip: This to-scale comparison of British Columbia vs. Manitoba uses the Mercator projection, which distorts the size of regions near the poles.
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