Antipode of Old Road, Antigua and Barbuda
The opposite side of the world to Old Road is Port Hedland, Western Australia, Australia.
Old Road
Antigua and Barbuda
Continent: America
Coordinates: 17.017, -61.836
Antipodal point
Indian Ocean
Exact location on the other side of the world
Coordinates: -17.017, 118.164
Port Hedland
Australia
Port Hedland is the closest city to Old Road's antipodal point (368 km).
The antipodal city to Old Road is Port Hedland. This means that, among all the populated locations in the world, the farthest city from Old Road is Port Hedland.
The distance from Old Road to Port Hedland 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 Old Road
This table contains the populated locations that are closest to Old Road's antipode. These are the farthest cities in the world from Old Road.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Port Hedland, WA | Australia | 368 km | (-20.312, 118.611) |
| South Hedland, WA | Australia | 378 km | (-20.407, 118.601) |
| Wickham, WA | Australia | 419 km | (-20.675, 117.138) |
| Lagrange, WA | Australia | 426 km | (-18.682, 121.785) |
| Roebourne, WA | Australia | 429 km | (-20.772, 117.146) |
| Dampier, WA | Australia | 432 km | (-20.663, 116.713) |
| Bulgarra, WA | Australia | 433 km | (-20.726, 116.857) |
| Karratha, WA | Australia | 435 km | (-20.738, 116.846) |
| Pegs Creek, WA | Australia | 435 km | (-20.738, 116.833) |
| Millars Well, WA | Australia | 436 km | (-20.742, 116.817) |
Local time:
Time Zone: America/Antigua
Coordinates: 17.0168° N 61.8358° W
Elevation: 8 m (26 ft)
Local time:
Time Zone: Australia/Perth
Coordinates: 20.3122° S 118.6106° E
Elevation: 5 m (16 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 Old Road
The DMS coordinates are: 17°1'0.6'' N 61°50'8.8'' W.
Calculations are easier by using the decimal format, hence:
LatO = 17.01682°
LngO = -61.83579°
Step 2: Calculate the latitude
LatA = - LatO = -17.01682°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -61.83579 + 180° = 118.16421°
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 Old Road is located on coordinates: (LatA, LngA) = (-17.01682, 118.16421)
In DMS format: 17°1'0.6'' N 61°50'8.8'' W.