Antipode of Hoi An, Vietnam
The opposite side of the world to Hoi An is Achoma, Arequipa, Peru.
Hoi An
Vietnam
Continent: Asia
Coordinates: 15.879, 108.335
Antipodal point
Peru
Continent: South America
Coordinates: -15.879, -71.665
Achoma
Peru
Achoma is the closest city to Hoi An's antipodal point (24 km).
The antipodal city to Hoi An is Achoma. This means that, among all the populated locations in the world, the farthest city from Hoi An is Achoma.
The distance from Hoi An to Achoma is about 20,000 kilometers. A direct flight would take around 22 hours, but there aren't commercial routes between these cities.
Cities on the other side of the world of Hoi An
This table contains the populated locations that are closest to Hoi An's antipode. These are the farthest cities in the world from Hoi An.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Achoma, Arequipa | Peru | 24 km | (-15.661, -71.701) |
| Pucara, Arequipa | Peru | 25 km | (-15.980, -71.460) |
| Huarancante, Arequipa | Peru | 25 km | (-15.768, -71.460) |
| Yanque, Arequipa | Peru | 25 km | (-15.649, -71.658) |
| Ichupampa, Arequipa | Peru | 26 km | (-15.650, -71.687) |
| Chivay, Arequipa | Peru | 28 km | (-15.638, -71.601) |
| Coporaque, Arequipa | Peru | 28 km | (-15.627, -71.646) |
| Huanca, Arequipa | Peru | 28 km | (-16.033, -71.878) |
| Maca, Arequipa | Peru | 29 km | (-15.641, -71.769) |
| Lari, Arequipa | Peru | 31 km | (-15.622, -71.769) |
Hoi An, Vietnam
Local time:
Coordinates: 15.8794° N 108.335° E
Achoma, Peru
Local time:
Coordinates: 15.6608° S 71.7008° W
How to calculate the antipodal point?
The antipode can be calculated by understanding the geographic coordinates and applying simple formulas. We will use the following variables:
- LatO: Latitude at the origin point.
- LngO: Longitude at the origin point.
- LatA: Latitude at the antipodal point.
- LngA: Longitude at the antipodal point.
Step 1: Obtain the geographic coordinates of Hoi An
The DMS coordinates are: 15°52'46'' N 108°20'6'' E .
Calculations are easier by using the decimal format, hence:
LatO = 15.87944°
LngO = 108.335°
Step 2: Calculate the latitude
LatA = - LatO = -15.87944°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = 108.335 - 180° = -71.665°
Since the longitude is positive, we subtract 180° to ensure the final value lies between (-180, 180). If it were the other way around, we would sum 180° for the same reason.
Result:
The antipode of Hoi An is located on coordinates: (LatA, LngA) = (-15.87944, -71.665)
In DMS format: 15°52'46'' N 108°20'6'' E .
