Udon Thani is 1.90× the size of Prince Edward Island

Udon Thani (province of Thailand) covers about 10,900 km² (4,200 mi²) and Prince Edward Island (province of Canada) about 5,730 km² (2,210 mi²). Below, both outlines are drawn at one scale and centred on each other.

10,900km²Udon Thani
5,730km²Prince Edward Island

50 km

Udon Thani
Prince Edward Island

What fits

Prince Edward Island is 53% of the size of Udon Thani.
Udon Thani is larger by 5,140 km² (1,980 mi²), which is 90% of the area of Prince Edward Island.
Measured in Belgiums: Udon Thani is about 0.35, Prince Edward Island about 0.19.

How they differ

Udon Thani also has the larger population: 1.6 million against 154,000, 10.2× as many people.
Per square kilometre that is 144 in Udon Thani against 27 in Prince Edward Island: Udon Thani is 5.36× as densely populated.
Their centres are about 12,800 km apart.
On a standard web map Prince Edward Island looks larger than Udon Thani: Udon Thani at 17°N is drawn about 1.1× too large and Prince Edward Island at 46°N about 2.1×, so the map shows Prince Edward Island as 1.01× the size of Udon Thani, when Udon Thani is 1.90× the size of Prince Edward Island.
Together Udon Thani and Prince Edward Island cover 16,600 km², close to the size of Eswatini (17,100 km², 3.1% bigger).
The gap between them, 5,140 km², is about the size of Trinidad and Tobago (5,120 km²).
At Prince Edward Island's density, Udon Thani would have 293,000 people (it has 1.6 million). At Udon Thani's density, Prince Edward Island would have 827,000 (it has 154,000).
Prince Edward Island's centre is 29.0° of latitude, about 3,220 km, farther north than Udon Thani's.
Udon Thani is the 13th largest of the 77 provinces of Thailand and covers 2.1% of its area; it is the 29th most densely populated of them.
Prince Edward Island is the 13th largest of the 13 provinces and territories of Canada and covers less than 0.1% of its area; it is the most densely populated of them.
Prince Edward Island lies about 29° of latitude (roughly 3,220 km) north of Udon Thani.
Shared out evenly, each person in Udon Thani would have about 6,930 m² and each person in Prince Edward Island about 37,150 m².
Laid side by side, Udon Thani and Prince Edward Island would cover 16,600 km², about the same size as Eswatini.
Together they have 1.7 million people, 94% as many people as North Macedonia.

Side by side

	Udon Thani	Prince Edward Island
Is a	ProvinceThailand	ProvinceCanada
Area, measured	10,900 km²4,200 mi²	5,730 km²2,210 mi²
Official area	11,700 km²Wikidata	5,620 km²Wikidata
Rank by area	13th of 77in Thailand	13th of 13in Canada
Population	1.6 millionWikidata, 2020	154,000Wikidata, 2021
Rank by population	7th of 77in Thailand	10th of 13in Canada
Density	144 per km²	27 per km²
Capital	Udon Thani	Charlottetown
Latitude range	17°N to 18°N	46°N to 47°N

Population: Wikidata 2020 and Wikidata 2021. Official figures: Wikidata (CC0).

Our measured 10,900 km² is 7.3% below Wikidata's official figure of 11,700 km². Official figures can include inland water or count land that an outline draws differently. This difference is flagged for review.
Our measured 5,730 km² is 2.0% above Wikidata's official figure of 5,620 km². Official figures can include inland water or count land that an outline draws differently.

Similar in size to Udon Thani

Similar in size to Prince Edward Island

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