Antipode of Coamo, Puerto Rico
The opposite side of the world to Coamo is Onslow, Western Australia, Australia.
Coamo
Puerto Rico
Continent: America
Coordinates: 18.080, -66.358
Antipodal point
Indian Ocean
Exact location on the other side of the world
Coordinates: -18.080, 113.642
Onslow
Australia
Onslow is the closest city to Coamo's antipodal point (423 km).
The antipodal city to Coamo is Onslow. This means that, among all the populated locations in the world, the farthest city from Coamo is Onslow.
The distance from Coamo to Onslow 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 Coamo
This table contains the populated locations that are closest to Coamo's antipode. These are the farthest cities in the world from Coamo.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Onslow, WA | Australia | 423 km | (-21.638, 115.112) |
| North West Cape, WA | Australia | 428 km | (-21.926, 114.030) |
| Exmouth, WA | Australia | 429 km | (-21.931, 114.121) |
| Dampier, WA | Australia | 431 km | (-20.663, 116.713) |
| Nickol, WA | Australia | 444 km | (-20.746, 116.795) |
| Baynton, WA | Australia | 444 km | (-20.752, 116.801) |
| Millars Well, WA | Australia | 445 km | (-20.742, 116.817) |
| Pegs Creek, WA | Australia | 446 km | (-20.738, 116.833) |
| Bulgarra, WA | Australia | 447 km | (-20.726, 116.857) |
| Karratha, WA | Australia | 447 km | (-20.738, 116.846) |
Local time:
Time Zone: America/Puerto_Rico
Coordinates: 18.08° N 66.358° W
Elevation: 126 m (413 ft)
Local time:
Time Zone: Australia/Perth
Coordinates: 21.6376° S 115.1122° E
Elevation: 7 m (23 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 Coamo
The DMS coordinates are: 18°4'47.9'' N 66°21'28.6'' W.
Calculations are easier by using the decimal format, hence:
LatO = 18.07996°
LngO = -66.35795°
Step 2: Calculate the latitude
LatA = - LatO = -18.07996°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -66.35795 + 180° = 113.64205°
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 Coamo is located on coordinates: (LatA, LngA) = (-18.07996, 113.64205)
In DMS format: 18°4'47.9'' N 66°21'28.6'' W.