Belgium is 1.18× the size of Great Slave Lake

Belgium (country) covers about 30,700 km² (11,800 mi²) and Great Slave Lake (lake) about 26,100 km² (10,100 mi²). Below, both outlines are drawn at one scale and centred on each other. The Great Slave Lake outline is Natural Earth’s, checked against the published area.

30,700km²Belgium
26,100km²Great Slave Lake

100 km

Belgium
Great Slave Lake

What fits

Great Slave Lake is 85% of the size of Belgium.
Belgium is larger by 4,570 km² (1,770 mi²), which is 18% of the area of Great Slave Lake.
Measured in Switzerlands: Belgium is about 0.74, Great Slave Lake about 0.63.

How they differ

Their centres are about 6,400 km apart.
On a standard web map Great Slave Lake looks larger than Belgium: Belgium at 51°N is drawn about 2.5× too large and Great Slave Lake at 62°N about 4.5×, so the map shows Great Slave Lake as 1.52× the size of Belgium, when Belgium is 1.18× the size of Great Slave Lake.
Together Belgium and Great Slave Lake cover 56,800 km², close to the size of Togo (56,900 km², 0.2% bigger).
The gap between them, 4,570 km², is about the size of Trinidad and Tobago (5,120 km²).
Great Slave Lake's centre is 11.1° of latitude, about 1,230 km, farther north than Belgium's.
Belgium ranks 140th of 212 countries by area.
Great Slave Lake is a lake and ranks 10th of the 104 lakes on sizeversus by area.
Laid out flat, Belgium stretches about 222 km north to south and 271 km east to west; Great Slave Lake about 222 km by 417 km.
Poured over Belgium, the 1,580 km³ that Wikidata records for Great Slave Lake would stand 52 m deep.
Our measured 26,100 km² is 4.1% below Wikidata’s published figure of 27,200 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	Belgium	1.18×
Farther north	Great Slave Lake	11.1° of latitude
Stretched more on a web map	Great Slave Lake	4.5× against 2.5×

Both against the same yardsticks

Yardstick	Belgium	Great Slave Lake
United Kingdom 244,000 km²	0.13×	0.11×
Germany 358,000 km²	0.09×	0.07×
Japan 374,000 km²	0.08×	0.07×
France 548,000 km²	0.06×	0.05×
India 3,151,000 km²	0.01×	0.01×
Brazil 8,473,000 km²	1 in 276	1 in 325
United States 9,447,000 km²	1 in 308	1 in 362
Russia 16,980,000 km²	1 in 554	1 in 651

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

Side by side

	Belgium	Great Slave Lake
Is a	CountryEurope	Lakelake on sizeversus
Area, measured	30,700 km²11,800 mi²	26,100 km²10,100 mi²
Area, published	30,700 km²Wikidata	27,200 km²Wikidata
Rank by area	140th of 212countries	10th of 104lakes
Greatest depth	–	614 mWikidata
Volume	–	1,580 km³
Latitude range	49°N to 51°N	61°N to 63°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 Great Slave 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 Belgium

Similar in size to Great Slave Lake

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