Hong Kong vs São Tomé and Principe

Hong Kong is 2.75 times larger than São Tomé and Principe. São Tomé and Principe would fit into Hong Kong about 2.8 times.

Hong KongSão Tomé and PrincipeHong Kong moved onto São Tomé and Principe · Equal-area projection
2.75×
Hong Kong is 2.75× the area of São Tomé and Principe.
Hong KongSão Tomé and Principe
Area2,755 km²1,001 km²
Population7,498,900240,254
Density2,722 / km²240 / km²
CapitalSao Tome
RegionEastern AsiaMiddle Africa
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; São Tomé and Principe at 0° N is stretched to 1.0×. 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 São Tomé and Principe?
Yes. Hong Kong is 2.75 times larger than São Tomé and Principe. Hong Kong covers 2,755 km² and São Tomé and Principe covers 1,001 km².
How many times does São Tomé and Principe fit into Hong Kong?
About 2.8 times: Hong Kong has 2.75× the area of São Tomé and Principe.
Why do Hong Kong and São Tomé and Principe 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 São Tomé and Principe about 1.0×. 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 São Tomé and Principe?
Hong Kong: 7,498,900 people against 240,254. Density: Hong Kong 2,722 per km², São Tomé and Principe 240 per km².