United Kingdom is 3.51× the size of Ireland

United Kingdom covers about 244,000 km² (94,100 mi²) and Ireland about 69,400 km² (26,800 mi²). Below, both outlines are drawn at one scale and centred on each other.

244,000km²United Kingdom
69,400km²Ireland

200 km

United Kingdom
Ireland

What fits

Ireland fits inside United Kingdom about 3.51 times by area.
United Kingdom is larger by 174,000 km² (67,300 mi²), which is 251% of the area of Ireland.
Measured in Belgiums: United Kingdom is about 7.95, Ireland about 2.26.

How they differ

United Kingdom also has the larger population: 67.3 million against 5.1 million, 13.1× as many people.
Per square kilometre that is 276 in United Kingdom against 74 in Ireland: United Kingdom is 3.72× as densely populated.
Their centres are about 367 km apart.
Together United Kingdom and Ireland cover 313,000 km², close to the size of Poland (313,000 km², 0.1% bigger).
The gap between them, 174,000 km², is about the size of Uruguay (177,000 km²).
At Ireland's density, United Kingdom would have 18.1 million people (it has 67.3 million). At United Kingdom's density, Ireland would have 19.2 million (it has 5.1 million).
United Kingdom's centre is 0.9° of latitude, about 100 km, farther north than Ireland's.

Who wins on what

Measure	Winner	By
Larger area	United Kingdom	3.51×
More people	United Kingdom	13.1×
More crowded	United Kingdom	3.72×
Farther north	United Kingdom	0.9° of latitude

Both against the same yardsticks

Yardstick	United Kingdom	Ireland
Belgium 30,700 km²	7.95×	2.26×
Germany 358,000 km²	0.68×	0.19×
Japan 374,000 km²	0.65×	0.19×
France 548,000 km²	0.44×	0.13×
India 3,151,000 km²	0.08×	0.02×
Brazil 8,473,000 km²	0.03×	0.01×
United States 9,447,000 km²	0.03×	0.01×
Russia 16,980,000 km²	0.01×	1 in 245

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

Side by side

	United Kingdom	Ireland
Area, main territory	244,000 km²94,100 mi²	69,400 km²26,800 mi²
Population	67.3 millionWikidata, 2021	5.1 millionWikidata, 2022
Density	276 per km²	74 per km²
Official area	242,000 km²Wikidata	69,800 km²Wikidata
Capital	London	Dublin
Latitude range	50°N to 61°N	51°N to 55°N
Continent	Europe	Europe

Population: Wikidata 2021 and Wikidata 2022, covering each whole country. Official figures: Wikidata (CC0).

Wikidata's official figure of 242,000 km² agrees with our measured area of 244,000 km², to within 2%.
Wikidata's official figure of 69,800 km² agrees with our measured area of 69,400 km², to within 2%.

Similar in size to United Kingdom

Similar in size to Ireland

More comparisons

Sources and method

Outlines: Natural Earth, 1:10m Admin 0 - Countries, public domain
Boundary: De facto, as drawn by Natural Earth. Main territory: the largest landmass and every part within 1,000 km of it.
Area: Measured on the WGS84 ellipsoid from the full-detail outlines, shown rounded. Comparisons use main-territory area.
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