Antipode of San Isidro, Puerto Rico
The opposite side of the world to San Isidro is Dampier, Western Australia, Australia.
San Isidro
Puerto Rico
Continent: America
Coordinates: 18.392, -65.885
Antipodal point
Indian Ocean
Exact location on the other side of the world
Coordinates: -18.392, 114.115
Dampier
Australia
Dampier is the closest city to San Isidro's antipodal point (371 km).
The antipodal city to San Isidro is Dampier. This means that, among all the populated locations in the world, the farthest city from San Isidro is Dampier.
The distance from San Isidro to Dampier 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 San Isidro
This table contains the populated locations that are closest to San Isidro's antipode. These are the farthest cities in the world from San Isidro.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Dampier, WA | Australia | 371 km | (-20.663, 116.713) |
| Onslow, WA | Australia | 374 km | (-21.638, 115.112) |
| Nickol, WA | Australia | 383 km | (-20.746, 116.795) |
| Baynton, WA | Australia | 384 km | (-20.752, 116.801) |
| Millars Well, WA | Australia | 385 km | (-20.742, 116.817) |
| Pegs Creek, WA | Australia | 386 km | (-20.738, 116.833) |
| Bulgarra, WA | Australia | 387 km | (-20.726, 116.857) |
| Karratha, WA | Australia | 387 km | (-20.738, 116.846) |
| Karratha Industrial Estate, WA | Australia | 391 km | (-20.772, 116.869) |
| North West Cape, WA | Australia | 391 km | (-21.926, 114.030) |
Local time:
Time Zone: America/Puerto_Rico
Coordinates: 18.3922° N 65.8854° W
Elevation: 12 m (39 ft)
Local time:
Time Zone: Australia/Perth
Coordinates: 20.6628° S 116.7126° E
Elevation: 31 m (102 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 San Isidro
The DMS coordinates are: 18°23'31.8'' N 65°53'7.6'' W.
Calculations are easier by using the decimal format, hence:
LatO = 18.39217°
LngO = -65.88544°
Step 2: Calculate the latitude
LatA = - LatO = -18.39217°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -65.88544 + 180° = 114.11456°
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 San Isidro is located on coordinates: (LatA, LngA) = (-18.39217, 114.11456)
In DMS format: 18°23'31.8'' N 65°53'7.6'' W.