Japan vs New Caledonia

Japan is 20.3 times larger than New Caledonia. New Caledonia would fit into Japan about 20 times.

JapanNew CaledoniaJapan moved onto New Caledonia · Equal-area projection
20.3×
Japan is 20.3× the area of New Caledonia.
JapanNew Caledonia
Area377,972 km²18,576 km²
Population123,366,734295,333
Density326 / km²16 / km²
CapitalTokyoNoum'ea
RegionEastern AsiaMelanesia
CoastlineHas a coastHas a coast
Neighbours00

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Japan sits at about 37°N and is stretched to 1.59× its true area; New Caledonia at 21° S is stretched to 1.15×. Here the two are distorted about the same amount, so Mercator gets this pair roughly right. The figure above uses the Equal Earth projection, where every square kilometre is drawn the same size.

Questions about this pair

Is Japan bigger than New Caledonia?
Yes. Japan is 20.3 times larger than New Caledonia. Japan covers 377,972 km² and New Caledonia covers 18,576 km².
How many times does New Caledonia fit into Japan?
About 20 times: Japan has 20.3× the area of New Caledonia.
Why do Japan and New Caledonia look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Japan is drawn about 1.59× its true area there and New Caledonia about 1.15×. For this pair the distortion is similar, so Mercator gets the comparison roughly right. Kartavera uses Equal Earth, where every square kilometre is drawn the same size.
Which has more people, Japan or New Caledonia?
Japan: 123,366,734 people against 295,333. Density: Japan 326 per km², New Caledonia 16 per km².