Sea
Arabian Sea
Natural Earth’s outline of the Arabian Sea measures about 4,129,000 km² (1,594,000 mi²), the largest of the 42 seas on sizeversus, and 1.31× the size of India.
- Arabian Sea
- India
The numbers
- 4,129,000km²Area, measured1,594,000 mi² · Natural Earth outline
- 3,862,000km²Area, publishedWikidata · 6.9% below our measure, flagged
- 5,800mGreatest depthWikidata
The area is measured from the outline drawn above, on the WGS84 ellipsoid; the published figure is shown beside it, and a water body is kept only if the two are within 10%. This one is between 5% and 10% apart, so it is flagged and no comparison is built for it automatically.
What the numbers say about the Arabian Sea
- The Arabian Sea is the largest of the 42 seas on sizeversus, 1.30× the size of the South China Sea, the next largest.
- Counted as a country, the Arabian Sea would be larger than 206 of the 212 countries listed on sizeversus and would rank 7th by area, between Australia (7,691,000 km²) and India (3,151,000 km²).
- It is larger than all 51 US states and districts.
- It is larger than all 31 provinces and regions of China.
- The closest US state is Alaska (1,505,000 km²): the Arabian Sea is 2.74× the size of Alaska.
- Wikidata records a greatest depth of 5,800 m.
- The Arabian Sea lies at 13°N, close to the equator, where a standard web map (Web Mercator) is nearly true to size: it inflates area by only about 1.1×.
- Laid out flat, the Arabian Sea stretches about 2,900 km north to south and 2,530 km east to west.
- Our measured 4,129,000 km² is 6.9% above Wikidata’s published figure of 3,862,000 km². This difference is flagged for review: a lake’s outline may include islands or bays that the published figure leaves out, or the water level may differ. The outline is kept because it is within 10%, and this page is not matched automatically to any other.
About the same size as
Countries
US states
On the shore
Natural Earth’s outlines of India, Pakistan, Oman, Somalia, Yemen and Iran lie within 25 km of the outline of the Arabian 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.
Where the Arabian Sea ranks
The Arabian Sea is the 1st largest of the 42 seas on sizeversus, ranked by measured area.
Share this outline
Sources and method
- Outline
- Natural Earth, 1:10m Marine Areas (geography_marine_polys), public domain (Marine Areas (geography_marine_polys)). Natural Earth draws marine areas for labels and cuts them at named sub-areas; the outline is kept because its area matches the published one.
- Boundary
- A lake or a sea has no legal boundary of its own. The outline is a cartographic one, and the page says so by showing the measured area beside the published one.
- Area basis
- Measured outline: computed on the WGS84 ellipsoid from the full-detail outline and shown rounded. Published figure: Wikidata (CC0), fetched 2026-11-11. An outline is kept within 10% of the published figure and matched to other places automatically within 5%.
- Depth, volume, height
- As recorded in Wikidata; a volume that cannot be right for the area and depth is left out.
- Shore
- Countries whose Natural Earth outline contains or comes close to the water's outline; computed, not a statement of ownership.
- Drawing
- Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and two can be laid over each other.
- Data built
- 2026-11-11