Dublin
115 km²
Oslo
454 km²
City Map Compare/Dublin vs Oslovs
vs
2 km
Ireland
Norway
Area Comparison
Dublin is 3.9x smaller than Oslo
Population Comparison
Dublin has 1.2x fewer people than Oslo
In terms of area, Oslo is 3.9x the size of Dublin. Oslo spans 454 km² (175 mi²) while Dublin covers 115 km² (44 mi²) — a difference of 339 km². You could fit Dublin inside Oslo approximately 3 times.
To put Dublin's size in perspective, its area of 115 km² is roughly the same size as San Francisco. Meanwhile, Oslo at 454 km² is about 1.3x smaller than Seoul.
Picture Dublin another way: its area is large enough to fit about 16,000 American football fields, 57 times the area of Monaco, or 34 times the area of Central Park. For Oslo, that's about 64,000 American football fields, 130 times the area of Central Park, or 8 times the area of Manhattan.
Dublin is the capital and largest city of Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the province of Leinster, and is bordered on the south by the Dublin Mountains, part of the Wicklow Mountains range. Dublin is the largest city by population on the island of Ireland; at the 2022 census, the city council area had a population of 592,713, while the city, including suburbs, had a population of 1,263,219, and County Dublin had a population of 1,501,500.
Known as "The Fair City", Dublin covers 115 km² with a population of 0.6 million. The city was established in 841. Dublin is known for Trinity College, Guinness Storehouse, Temple Bar, among other attractions.
Dublin sits on Dublin Bay at the mouth of the River Liffey, bordered to the south by the Dublin Mountains.
Oslo is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of 724,290 in 2025, while the city's greater urban area had a population of 1,110,887 in 2025, and the metropolitan area had an estimated population of 1,546,706 in 2021.
Also known as "Tigerstaden", Oslo has an area of 454 km² and is home to 0.7 million people. Its history stretches back to 1048. Visitors come for Vigeland Park, Oslo Opera House, Akershus Fortress, and much more.
Oslo is both a county and a municipality, with the city itself home to about 724,000 residents in 2025.
Dublin has a population density of 5,130 people per km² — a densely populated city. Oslo, with 1,586 people per km², is a relatively spread-out city. Dublin is dramatically more crowded, with 3.2x the population density.
Size Ratio
Dublin fits inside Oslo ~3 times
Density Gap
Dublin is 3.2x more densely populated
History
Dublin is ~207 years older
Dublin covers 115 km². Cities with a similar urban footprint include Vancouver (115 km²), San Francisco (121 km²), Paris (105 km²), Barcelona (101 km²), or Doha (132 km²).
Oslo covers 454 km². Cities with a similar urban footprint include Chennai (427 km²), Prague (496 km²), Vienna (415 km²), Montreal (498 km²), or Denver (401 km²).
The straight-line distance from Dublin to Oslo is 1,264 km (786 miles), with an estimated flight time of ~1h 59m.
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