Rhode Island is 1.30× the size of Tokyo

Rhode Island (state of the United States) covers about 2,830 km² (1,090 mi²) and Tokyo (metropolis of Japan) about 2,180 km² (843 mi²). Below, both outlines are drawn at one scale and centred on each other.

2,830km²Rhode Island
2,180km²Tokyo

500 km

Rhode Island
Tokyo

What fits

Tokyo is 77% of the size of Rhode Island.
Rhode Island is larger by 649 km² (251 mi²), which is 30% of the area of Tokyo.
Measured in Belgiums: Rhode Island is about 0.09, Tokyo about 0.07.

How they differ

Rhode Island is larger, but Tokyo has the larger population: 14.3 million against 1.1 million, 13.0× as many people.
Per square kilometre that is 6,534 in Tokyo against 387 in Rhode Island: Tokyo is 16.9× as densely populated.
Their centres are about 10,900 km apart.
A standard web map misstates the comparison: Rhode Island at 42°N is drawn about 1.8× too large and Tokyo at 35°N about 1.5×, so the map shows Rhode Island as 1.56× the size of Tokyo instead of 1.30×.
Together Rhode Island and Tokyo cover 5,020 km², close to the size of Trinidad and Tobago (5,120 km², 2.1% bigger).
The gap between them, 649 km², is about the size of Micronesia (634 km²).
At Tokyo's density, Rhode Island would have 18.5 million people (it has 1.1 million). At Rhode Island's density, Tokyo would have 846,000 (it has 14.3 million).
Rhode Island's centre is 6.7° of latitude, about 740 km, farther north than Tokyo's.
Rhode Island is the 50th largest of the 51 states and districts of the United States and covers less than 0.1% of its area; it is the 3rd most densely populated of them.
Tokyo is the 44th largest of the 47 prefectures of Japan and covers 0.6% of its area; it is the most densely populated of them.
Rhode Island lies about 7° of latitude (roughly 740 km) north of Tokyo.
Shared out evenly, each person in Rhode Island would have about 2,580 m² and each person in Tokyo about 150 m².
Laid side by side, Rhode Island and Tokyo would cover 5,020 km², about the same size as Trinidad and Tobago.
Together they have 15.4 million people, about as many people as Zimbabwe.
Tokyo is drawn from 173 points: at a size under 2,500 km² the outline is a sketch, so the overlap shows the proportions rather than the exact shape.

Side by side

	Rhode Island	Tokyo
Is a	StateUnited States	MetropolisJapan
Area, measured	2,830 km²1,090 mi²	2,180 km²843 mi²
Official area	3,140 km²Wikidata	2,190 km²Wikidata
Rank by area	50th of 51in the United States	44th of 47in Japan
Population	1.1 millionWikidata, 2020	14.3 millionWikidata, 2022
Rank by population	43rd of 51in the United States	1st of 47in Japan
Density	387 per km²	6,534 per km²
Capital	Providence	Shinjuku; Tokyo
Latitude range	41°N to 42°N	24°N to 36°N

Population: Wikidata 2020 and Wikidata 2022. Official figures: Wikidata (CC0).

Our measured 2,830 km² is 9.9% below Wikidata's official figure of 3,140 km². Official figures can include inland water or count land that an outline draws differently. This difference is flagged for review.
Wikidata's official figure of 2,190 km² agrees with our measured area of 2,180 km², to within 2%.

Similar in size to Rhode Island

Similar in size to Tokyo

More comparisons

Sources and method

Outlines: Natural Earth, 1:10m Admin 1 - States, Provinces, public domain
Boundary: De facto, as drawn by Natural Earth. A region is drawn whole, every island included; a country is its main territory.
Area: Measured on the WGS84 ellipsoid from the full-detail outlines, shown rounded.
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: 2026-11-12

Full method