Australian Capital Territory is about 2.4 times smaller than Prince Edward Island.

Prince Edward Island is approximately 5,620 km² (2,170 sq mi), while Australian Capital Territory is approximately 2,358 km² (910 sq mi), making Australian Capital Territory 41.96% the size of Prince Edward Island.
Tip: This to-scale comparison of Prince Edward Island vs. Australian Capital Territory uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Australian Capital Territory vs. Prince Edward Island

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