Dublin
114,990,000 km²
Osaka
225 km²
Ireland
Japan
Area Comparison
Dublin is 511066.7x larger than Osaka
Population Comparison
Dublin has 4.7x fewer people than Osaka
Dublin is significantly larger, covering 511066.7 times the area of Osaka. Dublin spans 114,990,000 km² (44,397,869 mi²) while Osaka covers 225 km² (87 mi²) — a difference of 114,989,775 km². You could fit Osaka inside Dublin approximately 511066 times.
Meanwhile, Osaka at 225 km² is roughly the same size as Amsterdam.
Dublin's footprint is roughly about 16,105,000,000 American football fields — pick whichever unit feels intuitive. For Osaka, that's about 32,000 American football fields, 110 times the area of Monaco, or 66 times the area of Central Park.
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 114,990,000 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.
Osaka is a designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the third-most populous city in Japan, following the special wards of Tokyo and Yokohama. With an estimated population of 2,816,247 as of October 1, 2025 and a population density of about 12,505 people per square kilometer, it is the largest component of the Keihanshin Metropolitan Area, the second-largest metropolitan area in Japan and the 10th-largest urban…
Often called "Nation's Kitchen", Osaka has an area of 225 km² and is home to 2.8 million people. Its history stretches back to 645. Visitors come for Osaka Castle, Dotonbori district, Universal Studios Japan, and much more. Getting around is easy with the Osaka Metro.
Osaka is the third-most populous city in Japan, following the special wards of Tokyo and Yokohama.
Dublin has a population density of 0 people per km² — a low-density, sprawling urban area. Osaka, with 12,222 people per km², is an extremely dense urban environment. Osaka is dramatically more crowded, with Infinityx the population density.
Size Ratio
Osaka fits inside Dublin ~511066 times
Density Gap
Osaka is Infinityx more densely populated
History
Osaka is ~196 years older
Dublin covers 114,990,000 km². Cities with a similar urban footprint include Doha (132,000,000 km²), Chennai (426,830,040 km²), Hangzhou (16,854 km²), Beijing (16,411 km²), or Brisbane (15,826 km²).
Osaka covers 225 km². Cities with a similar urban footprint include Amsterdam (219 km²), Boston (232 km²), Helsinki (214 km²), Kuala Lumpur (243 km²), or Buenos Aires (203 km²).
The straight-line distance from Dublin to Osaka is 9,554 km (5,936 miles), with an estimated flight time of ~11h 44m.
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