The opposite side of the world to Riverside is Saint-Philippe, Reunion, Reunion.
United States
Continent: America
Coordinates: 33.953, -117.396
Indian Ocean
Exact location on the other side of the world
Coordinates: -33.953, 62.604
Reunion
Saint-Philippe is the closest city to Riverside's antipodal point (1,549 km).
The antipodal city to Riverside is Saint-Philippe. This means that, among all the populated locations in the world, the farthest city from Riverside is Saint-Philippe.
The distance from Riverside to Saint-Philippe is about 18,000 kilometers. A direct flight would take around 21 hours, but there aren't commercial routes between these cities.
This table contains the populated locations that are closest to Riverside's antipode. These are the farthest cities in the world from Riverside.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Saint-Philippe, Reunion | Reunion | 1,549 km | (-21.361, 55.768) |
| Saint-Joseph, Reunion | Reunion | 1,554 km | (-21.378, 55.617) |
| Petite-Île, Reunion | Reunion | 1,558 km | (-21.353, 55.564) |
| Saint-Pierre, Reunion | Reunion | 1,564 km | (-21.339, 55.478) |
| Le Tampon, Reunion | Reunion | 1,568 km | (-21.277, 55.518) |
| Sainte-Rose, Reunion | Reunion | 1,571 km | (-21.129, 55.796) |
| Saint-Louis, Reunion | Reunion | 1,572 km | (-21.286, 55.411) |
| Souillac, Savanne | Mauritius | 1,571 km | (-20.517, 57.517) |
| Rivière des Anguilles, Savanne | Mauritius | 1,572 km | (-20.493, 57.563) |
| Surinam, Savanne | Mauritius | 1,572 km | (-20.510, 57.505) |
Local time:
Time Zone: America/Los_Angeles
Coordinates: 33.9534° N 117.3962° W
Elevation: 257 m (843 ft)
Local time:
Time Zone: Indian/Reunion
Coordinates: 21.3609° S 55.7679° E
Elevation: 28 m (92 ft)
The antipode can be calculated by understanding the geographic coordinates and applying simple formulas. We will use the following variables:
Step 1: Obtain the geographic coordinates of Riverside
The DMS coordinates are: 33°57'12.1'' N 117°23'46.2'' W.
Calculations are easier by using the decimal format, hence:
LatO = 33.95335°
LngO = -117.39616°
Step 2: Calculate the latitude
LatA = - LatO = -33.95335°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -117.39616 + 180° = 62.60384°
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 Riverside is located on coordinates: (LatA, LngA) = (-33.95335, 62.60384)
In DMS format: 33°57'12.1'' N 117°23'46.2'' W.