Hong Kong vs Japan

Japan is 137 times larger than Hong Kong. Hong Kong would fit into Japan about 137 times.

Hong KongJapanHong Kong moved onto Japan · Equal-area projection
0.01×
Hong Kong is 0.01× the area of Japan. Put the other way, Japan is 137× the size of Hong Kong.
Hong KongJapan
Area2,755 km²377,972 km²
Population7,498,900123,366,734
Density2,722 / km²326 / km²
CapitalTokyo
RegionEastern AsiaEastern Asia
CoastlineHas a coastHas a coast
Neighbours10

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Hong Kong sits at about 22°N and is stretched to 1.17× its true area; Japan at 37° N is stretched to 1.59×. 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 Hong Kong bigger than Japan?
No. Hong Kong is 137 times smaller than Japan. Hong Kong covers 2,755 km² and Japan covers 377,972 km².
How many times does Hong Kong fit into Japan?
About 137 times: Japan has 137× the area of Hong Kong.
Why do Hong Kong and Japan look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Hong Kong is drawn about 1.17× its true area there and Japan about 1.59×. 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, Hong Kong or Japan?
Japan: 123,366,734 people against 7,498,900. Density: Hong Kong 2,722 per km², Japan 326 per km².