Antipode of Portmore, Jamaica
The opposite side of the world to Portmore is Flying Fish Cove, Christmas Island.
Portmore
Jamaica
Continent: America
Coordinates: 17.971, -76.887
Antipodal point
Indian Ocean
Exact location on the other side of the world
Coordinates: -17.971, 103.113
Flying Fish Cove
Christmas Island
Flying Fish Cove is the closest city to Portmore's antipodal point (880 km).
The antipodal city to Portmore is Flying Fish Cove. This means that, among all the populated locations in the world, the farthest city from Portmore is Flying Fish Cove.
The distance from Portmore to Flying Fish Cove is about 19,000 kilometers. A direct flight would take around 21 hours, but there aren't commercial routes between these cities.
Cities on the other side of the world of Portmore
This table contains the populated locations that are closest to Portmore's antipode. These are the farthest cities in the world from Portmore.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Flying Fish Cove | Christmas Island | 880 km | (-10.422, 105.679) |
| West Island | Cocos Islands | 933 km | (-12.157, 96.823) |
| North West Cape, WA | Australia | 1,223 km | (-21.926, 114.030) |
| Exmouth, WA | Australia | 1,232 km | (-21.931, 114.121) |
| Cibungur, West Java | Indonesia | 1,230 km | (-7.372, 106.539) |
| Rancaerang, West Java | Indonesia | 1,231 km | (-7.422, 106.718) |
| Buniasih, West Java | Indonesia | 1,231 km | (-7.423, 106.723) |
| Mekarjaya Satu, West Java | Indonesia | 1,231 km | (-7.412, 106.701) |
| Tegalbuleud, West Java | Indonesia | 1,231 km | (-7.426, 106.745) |
| Simpenan, West Java | Indonesia | 1,232 km | (-7.350, 106.514) |
Local time:
Time Zone: America/Jamaica
Coordinates: 17.971° N 76.8869° W
Elevation: 7 m (23 ft)
Local time:
Time Zone: Indian/Christmas
Coordinates: 10.4217° S 105.6791° E
Elevation: 135 m (443 ft)
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 Portmore
The DMS coordinates are: 17°58'15.7'' N 76°53'12.9'' W.
Calculations are easier by using the decimal format, hence:
LatO = 17.97102°
LngO = -76.88691°
Step 2: Calculate the latitude
LatA = - LatO = -17.97102°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -76.88691 + 180° = 103.11309°
Since the longitude is negative, we sum 180° to ensure the final value lies between (-180, 180). If it were the other way around, we would subtract 180° for the same reason.
Result:
The antipode of Portmore is located on coordinates: (LatA, LngA) = (-17.97102, 103.11309)
In DMS format: 17°58'15.7'' N 76°53'12.9'' W.