Réunion (France) is 1.18× the size of Tokyo

Réunion (France) (overseas region of France) covers about 2,580 km² (997 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.

2,580km²Réunion (France)
2,180km²Tokyo

500 km

Réunion (France)
Tokyo

What fits

Tokyo is 85% of the size of Réunion (France).
Réunion (France) is larger by 399 km² (154 mi²), which is 18% of the area of Tokyo.
Measured in Belgiums: Réunion (France) is about 0.08, Tokyo about 0.07.

How they differ

Réunion (France) is larger, but Tokyo has the larger population: 14.3 million against 881,000, 16.2× as many people.
Per square kilometre that is 6,534 in Tokyo against 341 in Réunion (France): Tokyo is 19.1× as densely populated.
Their centres are about 10,800 km apart.
On a standard web map Tokyo looks larger than Réunion (France): Réunion (France) at 21°S is drawn about 1.1× too large and Tokyo at 35°N about 1.5×, so the map shows Tokyo as 1.10× the size of Réunion (France), when Réunion (France) is 1.18× the size of Tokyo.
Together Réunion (France) and Tokyo cover 4,770 km², close to the size of Trinidad and Tobago (5,120 km², 7.5% bigger).
The gap between them, 399 km², is about the size of Saint Vincent and the Grenadines (368 km²).
At Tokyo's density, Réunion (France) would have 16.9 million people (it has 881,000). At Réunion (France)'s density, Tokyo would have 745,000 (it has 14.3 million).
Tokyo's centre is 56.1° of latitude, about 6,240 km, farther north than Réunion (France)'s.
Réunion (France) is the 15th largest of the 18 regions of France and covers 0.4% 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.
Tokyo lies about 56° of latitude (roughly 6,240 km) north of Réunion (France), on the other side of the equator.
Shared out evenly, each person in Réunion (France) would have about 2,930 m² and each person in Tokyo about 150 m².
Laid side by side, Réunion (France) and Tokyo would cover 4,770 km², 93% of the size of Trinidad and Tobago.
Together they have 15.1 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

	Réunion (France)	Tokyo
Is a	Overseas regionFrance	MetropolisJapan
Area, measured	2,580 km²997 mi²	2,180 km²843 mi²
Official area	2,510 km²Wikidata	2,190 km²Wikidata
Rank by area	15th of 18in France	44th of 47in Japan
Population	881,000Wikidata, 2022	14.3 millionWikidata, 2022
Rank by population	13th of 18in France	1st of 47in Japan
Density	341 per km²	6,534 per km²
Capital	Saint-Denis	Shinjuku; Tokyo
Latitude range	21°S to 21°S	24°N to 36°N

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

Our measured 2,580 km² is 2.8% above Wikidata's official figure of 2,510 km². Official figures can include inland water or count land that an outline draws differently.
Wikidata's official figure of 2,190 km² agrees with our measured area of 2,180 km², to within 2%.

Similar in size to Réunion (France)

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