Persian Gulf is 1.03× the size of Guangxi

The Persian Gulf (gulf) covers about 243,000 km² (94,000 mi²) and Guangxi (autonomous region) about 237,000 km² (91,600 mi²). Below, both outlines are drawn at one scale and centred on each other. The Persian Gulf outline is Natural Earth’s, checked against the published area.

243,000km²Persian Gulf
237,000km²Guangxi

200 km

Persian Gulf
Guangxi

What fits

Guangxi is 97% of the size of Persian Gulf.
Persian Gulf is larger by 6,120 km² (2,360 mi²), which is 2.6% of the area of Guangxi.
Measured in Belgiums: Persian Gulf is about 7.94, Guangxi about 7.74.

How they differ

Their centres are about 5,670 km apart.
Together Persian Gulf and Guangxi cover 481,000 km², close to the size of Somalia (472,000 km², 1.9% smaller).
The gap between them, 6,120 km², is about the size of Palestine (6,070 km²).
Persian Gulf's centre is 3.0° of latitude, about 330 km, farther north than Guangxi's.
The Persian Gulf is a gulf and ranks 22nd of the 42 seas on sizeversus by area.
Guangxi is an autonomous region of China; it is not drawn with its waters removed, and its measured area is the Natural Earth outline's.
Laid out flat, the Persian Gulf stretches about 729 km north to south and 933 km east to west; Guangxi about 556 km by 765 km.
Our measured 243,000 km² is 3.0% below Wikidata’s published figure of 251,000 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	Persian Gulf	1.03×
Farther north	Persian Gulf	3.0° of latitude
Stretched more on a web map	Persian Gulf	1.3× against 1.2×

Both against the same yardsticks

Yardstick	Persian Gulf	Guangxi
Belgium 30,700 km²	7.94×	7.74×
United Kingdom 244,000 km²	1.00×	0.97×
Germany 358,000 km²	0.68×	0.66×
Japan 374,000 km²	0.65×	0.64×
France 548,000 km²	0.44×	0.43×
India 3,151,000 km²	0.08×	0.08×
Brazil 8,473,000 km²	0.03×	0.03×
United States 9,447,000 km²	0.03×	0.03×
Russia 16,980,000 km²	0.01×	0.01×

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

Side by side

	Persian Gulf	Guangxi
Is a	Gulfsea on sizeversus	Autonomous RegionChina
Area, measured	243,000 km²94,000 mi²	237,000 km²91,600 mi²
Area, published	251,000 km²Wikidata	235,000 km²Wikidata
Rank by area	22nd of 42seas	–
Greatest depth	90 mWikidata	–
Latitude range	24°N to 31°N	21°N to 26°N
On the shore	8 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 Iran, Saudi Arabia, the United Arab Emirates, Qatar, Kuwait, Oman, Iraq and Bahrain lie within 25 km of the outline of the Persian Gulf. 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 Persian Gulf

Similar in size to Guangxi

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