Reindeer Lake is 1.18× the size of Brunei

Reindeer Lake (lake) covers about 6,720 km² (2,590 mi²) and Brunei (country) about 5,720 km² (2,210 mi²). Below, both outlines are drawn at one scale and centred on each other. The Reindeer Lake outline is Natural Earth’s, checked against the published area.

6,720km²Reindeer Lake
5,720km²Brunei

50 km

Reindeer Lake
Brunei

What fits

Brunei is 85% of the size of Reindeer Lake.
Reindeer Lake is larger by 1,000 km² (387 mi²), which is 18% of the area of Brunei.
Measured in Belgiums: Reindeer Lake is about 0.22, Brunei about 0.19.

How they differ

Their centres are about 12,400 km apart.
A standard web map misstates the comparison: Reindeer Lake at 57°N is drawn about 3.4× too large and Brunei at 5°N about 1.0×, so the map shows Reindeer Lake as 4.00× the size of Brunei instead of 1.18×.
Together Reindeer Lake and Brunei cover 12,400 km², close to the size of Vanuatu (12,300 km², 1.1% smaller).
The gap between them, 1,000 km², is about the size of Hong Kong (1,040 km²).
Reindeer Lake's centre is 52.8° of latitude, about 5,870 km, farther north than Brunei's.
Reindeer Lake is a lake and ranks 23rd of the 104 lakes on sizeversus by area.
Brunei ranks 169th of 212 countries by area.
Laid out flat, Reindeer Lake stretches about 211 km north to south and 109 km east to west; Brunei about 116 km by 151 km.
Poured over Brunei, the 95 km³ that Wikidata records for Reindeer Lake would stand 17 m deep.
Our measured 6,720 km² is 3.4% above Wikidata’s published figure of 6,500 km². Published areas of lakes and seas move with the water level and with what is counted, so a few percent is expected.

Who wins on what

Measure	Winner	By
Larger area	Reindeer Lake	1.18×
Farther north	Reindeer Lake	52.8° of latitude
Stretched more on a web map	Reindeer Lake	3.4× against 1.0×

Both against the same yardsticks

Yardstick	Reindeer Lake	Brunei
Belgium 30,700 km²	0.22×	0.19×
United Kingdom 244,000 km²	0.03×	0.02×
Germany 358,000 km²	0.02×	0.02×
Japan 374,000 km²	0.02×	0.02×
France 548,000 km²	0.01×	0.01×
India 3,151,000 km²	1 in 469	1 in 551
Brazil 8,473,000 km²	1 in 1,261	1 in 1,482
United States 9,447,000 km²	1 in 1,406	1 in 1,653
Russia 16,980,000 km²	1 in 2,527	1 in 2,970

Each figure is the place's area divided by the yardstick's.

Side by side

	Reindeer Lake	Brunei
Is a	Lakelake on sizeversus	CountryAsia
Area, measured	6,720 km²2,590 mi²	5,720 km²2,210 mi²
Area, published	6,500 km²Wikidata	5,770 km²Wikidata
Rank by area	23rd of 104lakes	169th of 212countries
Greatest depth	219 mWikidata	–
Volume	95 km³	–
Latitude range	56°N to 58°N	4°N to 5°N
On the shore	1 on the shore	–

Published figures: Wikidata (CC0). A lake or a sea has no legal boundary: the measured area is that of Natural Earth’s outline, and it is shown beside the published one.

Natural Earth’s outlines of Canada contain or lie within 4 km of the outline of Reindeer Lake. That is what its geometry says, and it is not a statement about who owns the water or where any border runs in it.

Similar in size to Reindeer Lake

Similar in size to Brunei

More comparisons

Sources and method

Outlines: Lakes and seas: Natural Earth 1:10m physical vectors (public domain), kept only where the measured area is within 10% of the published one. Countries and regions: Natural Earth, 1:10m Admin 0 and Admin 1, public domain.
Boundary: De facto, as drawn by Natural Earth. A lake or a sea has no legal boundary of its own; the outline is a cartographic one.
Area: Measured on the WGS84 ellipsoid from the full-detail outlines, shown rounded. The published figure comes from Wikidata (CC0), fetched 2026-11-11, and is shown beside the measured one.
Drawing: Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and the two can be laid over each other.
Data built: 2026-11-11

Full method