Bangkok
1,569 km²
Sydney
12,368 km²
Thailand
Australia
Area Comparison
Bangkok is 7.9x smaller than Sydney
Population Comparison
Bangkok has 2.0x more people than Sydney
Yes — Sydney is 7.9x larger than Bangkok by area. Sydney spans 12,368 km² (4,775 mi²) while Bangkok covers 1,569 km² (606 mi²) — a difference of 10,799 km². You could fit Bangkok inside Sydney approximately 7 times.
To put Bangkok's size in perspective, its area of 1,569 km² is roughly the same size as London. Meanwhile, Sydney at 12,368 km² is about 2.0x the size of Shanghai.
In more relatable units, Bangkok's 1,569 km² is about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris. For Sydney, that's about 1,700,000 American football fields, 120 times the area of Paris, or 100 times the area of San Francisco.
Bangkok, officially known in Thai as Krung Thep Maha Nakhon and colloquially as Krung Thep, is the capital and most populous city of Thailand. The city occupies 1,568.7 square kilometres (605.7 sq mi) in the Chao Phraya River delta in central Thailand and has an estimated population of 11.4 million people as of 2024, 15.9% of the country's population.
Known as "City of Angels", Bangkok covers 1,569 km² with a population of 10.5 million. The city was established in 1782. Bangkok is known for Grand Palace, Wat Arun, Wat Pho, among other attractions. The city's main transit system is the BTS Skytrain & MRT.
Bangkok's official Thai name is Krung Thep Maha Nakhon, with the full ceremonial name being one of the longest place names in the world.
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.
Nicknamed "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 1.6x larger than greater Bangkok at 7,762 km². The Bangkok metro area is also more populous, with 16.2 million people compared to 5.3 million.
Bangkok has a population density of 6,718 people per km² — a densely populated city. Sydney, with 429 people per km², is a low-density, sprawling urban area. Bangkok is dramatically more crowded, with 15.7x the population density.
This comparison spans continents — Bangkok in Asia versus Sydney in Oceania. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Bangkok has a tropical savanna climate while Sydney experiences humid subtropical conditions. When it's noon in Sydney, it's 9:00 AM in Bangkok — a 3-hour time difference.
Size Ratio
Bangkok fits inside Sydney ~7 times
Density Gap
Bangkok is 15.7x more densely populated
Time Difference
3 hours apart
Bangkok covers 1,569 km². Cities with a similar urban footprint include London (1,572 km²), Bogotá (1,578 km²), São Paulo (1,521 km²), Johannesburg (1,644 km²), or Mexico City (1,485 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 Bangkok to Sydney is 7,536 km (4,683 miles), with an estimated flight time of ~9h 22m.
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