Jiangsu is 1.09× the size of White Sea

Jiangsu (province) covers about 100,000 km² (38,600 mi²) and the White Sea (sea) about 92,200 km² (35,600 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.

100,000km²Jiangsu
92,200km²White Sea

100 km

Jiangsu
White Sea

What fits

White Sea is 92% of the size of Jiangsu.
Jiangsu is larger by 7,900 km² (3,050 mi²), which is 8.6% of the area of White Sea.
Measured in Belgiums: Jiangsu is about 3.26, White Sea about 3.01.

How they differ

Their centres are about 6,260 km apart.
On a standard web map White Sea looks larger than Jiangsu: Jiangsu at 33°N is drawn about 1.4× too large and White Sea at 66°N about 6.2×, so the map shows White Sea as 4.01× the size of Jiangsu, when Jiangsu is 1.09× the size of White Sea.
Together Jiangsu and White Sea cover 192,000 km², close to the size of Senegal (196,000 km², 2.1% bigger).
The gap between them, 7,900 km², is about the size of Lebanon (10,000 km²).
White Sea's centre is 33.3° of latitude, about 3,710 km, farther north than Jiangsu's.
Jiangsu is a province of China; it is not drawn with its waters removed, and its measured area is the Natural Earth outline's.
The White Sea is a sea and ranks 30th of the 42 seas on sizeversus by area.
Laid out flat, Jiangsu stretches about 483 km north to south and 516 km east to west; the White Sea about 545 km by 547 km.
Poured over Jiangsu, the 4,400 km³ that Wikidata records for the White Sea would stand 44 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	Jiangsu	1.09×
Farther north	White Sea	33.3° of latitude
Stretched more on a web map	White Sea	6.2× against 1.4×

Both against the same yardsticks

Yardstick	Jiangsu	White Sea
Belgium 30,700 km²	3.26×	3.01×
United Kingdom 244,000 km²	0.41×	0.38×
Germany 358,000 km²	0.28×	0.26×
Japan 374,000 km²	0.27×	0.25×
France 548,000 km²	0.18×	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

	Jiangsu	White Sea
Is a	ProvinceChina	Seasea on sizeversus
Area, measured	100,000 km²38,600 mi²	92,200 km²35,600 mi²
Area, published	98,300 km²Wikidata	90,800 km²Wikidata
Rank by area	–	30th of 42seas
Greatest depth	–	330 mWikidata
Volume	–	4,400 km³
Latitude range	31°N to 35°N	64°N to 69°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 Jiangsu

Similar in size to White Sea

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