British Columbia is around the same size as Ontario.

Ontario is approximately 1,076,395 km² (415,598 sq mi), while British Columbia is approximately 944,735 km² (364,764 sq mi), making British Columbia 87.77% the size of Ontario.
Tip: This to-scale comparison of Ontario vs. British Columbia uses the Mercator projection, which distorts the size of regions near the poles.
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