Saint Helena vs Tonga

Tonga is 90% larger than Saint Helena. Saint Helena would fit into Tonga about 1.9 times.

Saint HelenaTongaSaint Helena moved onto Tonga · Equal-area projection
0.53×
Saint Helena is 0.53× the area of Tonga. Put the other way, Tonga is 1.9× the size of Saint Helena.
Saint HelenaTonga
Area394 km²749 km²
Population5,633103,742
Density14 / km²139 / km²
CapitalJamestownNuku'alofa
RegionWestern AfricaPolynesia
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. Saint Helena sits at about 12°S and is stretched to 1.05× its true area; Tonga at 20° S is stretched to 1.14×. 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 Saint Helena bigger than Tonga?
No. Saint Helena is 47% smaller than Tonga. Saint Helena covers 394 km² and Tonga covers 749 km².
How many times does Saint Helena fit into Tonga?
About 1.9 times: Tonga has 1.9× the area of Saint Helena.
Why do Saint Helena and Tonga look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Saint Helena is drawn about 1.05× its true area there and Tonga about 1.14×. 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, Saint Helena or Tonga?
Tonga: 103,742 people against 5,633. Density: Saint Helena 14 per km², Tonga 139 per km².