Alaska is about 80 times bigger than New Caledonia.

New Caledonia is approximately 18,575 sq km, while Alaska is approximately 1,481,348 sq km, making Alaska 7,875% larger than New Caledonia. Meanwhile, the population of New Caledonia is ~297,160 people (413,071 more people live in Alaska).
Tip: This to-scale comparison of New Caledonia vs. Alaska uses the Mercator projection, which distorts the size of regions near the poles.