Guangzhou to Hanoi
Straight-line distance between Guangzhou, CN and Hanoi, VN. This is the shortest distance between the two cities as the crow flies.
Route Overview
Direct path from Guangzhou to Hanoi
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Travel Information
Interesting Facts
Flight Path
Commercial flights may fly 10-20% farther due to air traffic and jet streams.
Speed of Light
Light would travel this distance in 0.003 seconds.
Great Circle Distance
This 798 km distance follows the shortest path on Earth's surface.
Note about travel times:
These are approximate estimates based on straight-line distance. Actual travel times will vary significantly based on routes, traffic, weather, connections, and other factors.
Distance Details
Guangzhou
Hanoi
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About This Distance Calculation
The distance between Guangzhou and Hanoi is calculated using the Haversine formula, which determines the great-circle distance between two points on a sphere given their latitude and longitude coordinates. This represents the shortest distance over the earth's surface, giving an "as-the-crow-flies" distance of approximately 798 kilometers (496 miles).
This calculation assumes the Earth is a perfect sphere (it's actually slightly flattened at the poles), but the Haversine formula is accurate to within 0.5% for distances between most points on Earth. The coordinates used are:
- Guangzhou: °N, °W
- Hanoi: °N, °W
Keep in mind that actual travel distances by car, train, or ship will be longer due to the need to follow roads, railways, shipping routes, and navigate around geographical obstacles. Flight paths may also differ from the great circle route due to air traffic control requirements, weather conditions, and airline-specific routing policies.