Mumbai
603 km²
Sydney
12,368 km²
India
Australia
Area Comparison
Mumbai is 20.5x smaller than Sydney
Population Comparison
Mumbai has 2.3x more people than Sydney
Sydney is significantly larger, covering 20.5 times the area of Mumbai. Sydney spans 12,368 km² (4,775 mi²) while Mumbai covers 603 km² (233 mi²) — a difference of 11,765 km². You could fit Mumbai inside Sydney approximately 20 times.
To put Mumbai's size in perspective, its area of 603 km² is roughly the same size as Seoul. Meanwhile, Sydney at 12,368 km² is about 2.0x the size of Shanghai.
Picture Mumbai another way: its area is large enough to fit about 84,000 American football fields, 180 times the area of Central Park, or 10 times the area of Manhattan. Sydney, by comparison, equals about 1,700,000 American football fields, 120 times the area of Paris, or 100 times the area of San Francisco.
Mumbai, also known as Bombay, is the capital city of the Indian state of Maharashtra. Mumbai is the financial capital and the most populous city proper of India, with an estimated population of 12.5 million (1.25 crore). Mumbai is the centre of the Mumbai Metropolitan Region, which is among the most populous metropolitan areas in the world with a population of over 23 million. Mumbai lies on the Konkan coast on the west coast of India and has a deep natural harbour.
Known as "Bombay", Mumbai covers 603 km² with a population of 12.4 million. The city was established in 1507. Mumbai is known for Gateway of India, Marine Drive, Bollywood, among other attractions. The city's main transit system is the Mumbai Suburban Railway.
Mumbai is the most populous city proper in India and serves as the country's financial capital with around 12.5 million residents.
Sydney is the capital city of the state of New South Wales, and is the most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about 80 kilometres (50 mi) from the Pacific Ocean in the east to the Blue Mountains in the west, and about 80 kilometres (50 mi) from Ku-ring-gai Chase National Park and the Hawkesbury River in the north and north-west, to the Royal National Park and Macarthur in the south and south-west.
Also known as "Sydneysiders", Sydney has an area of 12,368 km² and is home to 5.3 million people. The city dates back to 1788. Visitors come for Sydney Opera House, Sydney Harbour Bridge, Bondi Beach, and much more. Getting around is easy with the Sydney Trains.
Sydney stretches roughly 80 km from the Pacific Ocean in the east to the Blue Mountains in the west.
Looking beyond city limits, the Sydney metropolitan area covers 12,368 km², which is 1.9x larger than greater Mumbai at 6,355 km². The Mumbai metro area is also more populous, with 20.7 million people compared to 5.3 million.
Mumbai has a population density of 20,630 people per km² — one of the most densely packed urban areas on Earth. Sydney, with 429 people per km², is a low-density, sprawling urban area. Mumbai is dramatically more crowded, with 48.1x the population density.
This comparison spans continents — Mumbai in Asia versus Sydney in Oceania. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Mumbai has a tropical wet and dry climate while Sydney experiences humid subtropical conditions. When it's noon in Sydney, it's 7.5:00 AM in Mumbai — a 4.5-hour time difference.
Size Ratio
Mumbai fits inside Sydney ~20 times
Density Gap
Mumbai is 48.1x more densely populated
Time Difference
4.5 hours apart
History
Mumbai is ~281 years older
Mumbai covers 603 km². Cities with a similar urban footprint include Madrid (604 km²), Seoul (605 km²), Chicago (606 km²), Toronto (630 km²), or Hyderabad (650 km²).
Sydney covers 12,368 km². Cities with a similar urban footprint include Chengdu (14,378 km²), Xi'an (10,097 km²), Melbourne (9,993 km²), Brisbane (15,826 km²), or Beijing (16,411 km²).
The straight-line distance from Mumbai to Sydney is 10,157 km (6,311 miles), with an estimated flight time of ~12h 27m.
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