Auckland
559 km²
Osaka
225 km²
New Zealand
Japan
Area Comparison
Auckland is 2.5x larger than Osaka
Population Comparison
Auckland has 1.9x fewer people than Osaka
Auckland is significantly larger, covering 2.5 times the area of Osaka. Auckland spans 559 km² (216 mi²) while Osaka covers 225 km² (87 mi²) — a difference of 334 km². You could fit Osaka inside Auckland approximately 2 times.
To put Auckland's size in perspective, its area of 559 km² is roughly the same size as Seoul. Meanwhile, Osaka at 225 km² is roughly the same size as Amsterdam.
In more relatable units, Auckland's 559 km² is about 78,000 American football fields, 160 times the area of Central Park, or 9 times the area of Manhattan. For Osaka, that's about 32,000 American football fields, 110 times the area of Monaco, or 66 times the area of Central Park.
Auckland is a large metropolitan city in the North Island of New Zealand. It has an urban population of about 1,547,200. It is located in the greater Auckland Region, the area governed by Auckland Council, which includes outlying rural areas and the islands of the Hauraki Gulf, and which has a total population of 1,816,000 as of June 2025. It is the most populous city of New Zealand and the fifth-most populous city in Oceania.
Known as "City of Sails", Auckland covers 559 km² with a population of 1.5 million. The city was established in 1840. Auckland is known for Sky Tower, Hauraki Gulf islands, Auckland Harbour Bridge, among other attractions.
Auckland is the most populous city in New Zealand and the fifth-most populous city in all of Oceania.
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…
Also known as "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.
Auckland has a population density of 2,630 people per km² — a moderately dense city. Osaka, with 12,222 people per km², is an extremely dense urban environment. Osaka is dramatically more crowded, with 4.6x the population density.
Size Ratio
Osaka fits inside Auckland ~2 times
Density Gap
Osaka is 4.6x more densely populated
History
Osaka is ~1,195 years older
Auckland covers 559 km². Cities with a similar urban footprint include Budapest (525 km²), Mumbai (603 km²), Madrid (604 km²), Warsaw (517 km²), or Seoul (605 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 Auckland to Osaka is 8,932 km (5,550 miles), with an estimated flight time of ~11h.
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