Alberta is about 1.4 times bigger than Yukon.

Yukon is approximately 482,443 km² (186,272 sq mi), while Alberta is approximately 661,848 km² (255,541 sq mi), making Alberta 37% larger than Yukon.
Tip: This to-scale comparison of Yukon vs. Alberta uses the Mercator projection, which distorts the size of regions near the poles.
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