Big Island of Hawaii is about 1.4 times smaller than Northern Ireland.

Northern Ireland is approximately 14,130 km² (5,456 sq mi), while Big Island of Hawaii is approximately 10,434 km² (4,029 sq mi), making Big Island of Hawaii 73.84% the size of Northern Ireland.
Tip: This to-scale comparison of Northern Ireland vs. Big Island of Hawaii uses the Mercator projection, which distorts the size of regions near the poles.
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