Yukon is about 1.4 times smaller than Alberta.

Alberta is approximately 661,848 km² (255,541 sq mi), while Yukon is approximately 482,443 km² (186,272 sq mi), making Yukon 72.89% the size of Alberta.
Tip: This to-scale comparison of Alberta vs. Yukon uses the Mercator projection, which distorts the size of regions near the poles.
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