White Sea is 1.01× the size of Portugal

The White Sea (sea) covers about 92,200 km² (35,600 mi²) and Portugal (country) about 91,400 km² (35,300 mi²). Below, both outlines are drawn at one scale and centred on each other. The White Sea outline is Natural Earth’s, checked against the published area.

92,200km²White Sea
91,400km²Portugal

500 km

White Sea
Portugal

What fits

Portugal is 99% of the size of White Sea.
White Sea is larger by 797 km² (308 mi²), which is 0.9% of the area of Portugal.
Measured in Belgiums: White Sea is about 3.01, Portugal about 2.98.

How they differ

Their centres are about 4,180 km apart.
A standard web map misstates the comparison: White Sea at 66°N is drawn about 6.2× too large and Portugal at 40°N about 1.7×, so the map shows White Sea as 3.71× the size of Portugal instead of 1.01×.
Together White Sea and Portugal cover 184,000 km², close to the size of Syria (186,000 km², 1.3% bigger).
White Sea's centre is 26.7° of latitude, about 2,970 km, farther north than Portugal's.
The White Sea is a sea and ranks 30th of the 42 seas on sizeversus by area.
Portugal ranks 111th of 212 countries by area.
Laid out flat, the White Sea stretches about 545 km north to south and 547 km east to west; Portugal about 1,020 km by 2,120 km.
Poured over Portugal, the 4,400 km³ that Wikidata records for the White Sea would stand 48 m deep.
Wikidata’s published figure of 90,800 km² agrees with our measured 92,200 km², to within 2%.

Who wins on what

Measure	Winner	By
Larger area	White Sea	1.01×
Farther north	White Sea	26.7° of latitude
Stretched more on a web map	White Sea	6.2× against 1.7×

Both against the same yardsticks

Yardstick	White Sea	Portugal
Belgium 30,700 km²	3.01×	2.98×
United Kingdom 244,000 km²	0.38×	0.37×
Germany 358,000 km²	0.26×	0.26×
Japan 374,000 km²	0.25×	0.24×
France 548,000 km²	0.17×	0.17×
India 3,151,000 km²	0.03×	0.03×
Brazil 8,473,000 km²	0.01×	0.01×
United States 9,447,000 km²	0.01×	0.01×
Russia 16,980,000 km²	0.01×	0.01×

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

Side by side

	White Sea	Portugal
Is a	Seasea on sizeversus	CountryEurope
Area, measured	92,200 km²35,600 mi²	91,400 km²35,300 mi²
Area, published	90,800 km²Wikidata	92,200 km²Wikidata
Rank by area	30th of 42seas	111th of 212countries
Greatest depth	330 mWikidata	–
Volume	4,400 km³	–
Latitude range	64°N to 69°N	30°N to 42°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 Russia lie within 25 km of the outline of the White Sea. 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 White Sea

Similar in size to Portugal

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