Indonesia vs Saudi Arabia

Saudi Arabia is 18% larger than Indonesia.

IndonesiaSaudi ArabiaIndonesia moved onto Saudi Arabia · Equal-area projection
0.85×
Indonesia is 0.85× the area of Saudi Arabia. Put the other way, Saudi Arabia is 1.18× the size of Indonesia.
IndonesiaSaudi Arabia
Area1,904,570 km²2,250,000 km²
Population285,721,23636,973,555
Density150 / km²16 / km²
CapitalJakartaRiyadh
RegionSouth-Eastern AsiaWestern Asia
CoastlineHas a coastHas a coast
Neighbours37

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Indonesia sits at about 2°S and is stretched to 1.0× its true area; Saudi Arabia at 24° N is stretched to 1.2×. 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 Indonesia bigger than Saudi Arabia?
No. Indonesia is 15% smaller than Saudi Arabia. Indonesia covers 1,904,570 km² and Saudi Arabia covers 2,250,000 km².
How many times does Indonesia fit into Saudi Arabia?
About 1.2 times: Saudi Arabia has 1.18× the area of Indonesia.
Why do Indonesia and Saudi Arabia look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Indonesia is drawn about 1.0× its true area there and Saudi Arabia about 1.2×. 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, Indonesia or Saudi Arabia?
Indonesia: 285,721,236 people against 36,973,555. Density: Indonesia 150 per km², Saudi Arabia 16 per km².