Northern Territory is about 1.4 times bigger than British Columbia.

British Columbia is approximately 944,735 km² (364,764 sq mi), while Northern Territory is approximately 1,347,791 km² (520,385 sq mi), making Northern Territory 43% larger than British Columbia.
Tip: This to-scale comparison of British Columbia vs. Northern Territory uses the Mercator projection, which distorts the size of regions near the poles.
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