Antipode of Ontario, United States

The opposite side of the world to Ontario is Saint-Philippe, Réunion, Reunion.

Ontario

United States

Continent: America

Coordinates: 34.063, -117.651

Antipodal point

Indian Ocean

Exact location on the other side of the world

Coordinates: -34.063, 62.349

Saint-Philippe

Reunion

Saint-Philippe is the closest city to Ontario's antipodal point (1,549 km).

The antipodal city to Ontario is Saint-Philippe. This means that, among all the populated locations in the world, the farthest city from Ontario is Saint-Philippe.

The distance from Ontario 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.

Cities on the other side of the world of Ontario

This table contains the populated locations that are closest to Ontario's antipode. These are the farthest cities in the world from Ontario.

City Country Distance from antipode Coordinates
Saint-Philippe, Réunion Reunion 1,549 km (-21.361, 55.768)
Saint-Joseph, Réunion Reunion 1,554 km (-21.378, 55.617)
Petite-Île, Réunion Reunion 1,558 km (-21.353, 55.564)
Saint-Pierre, Réunion Reunion 1,563 km (-21.339, 55.478)
Le Tampon, Réunion Reunion 1,568 km (-21.277, 55.518)
Saint-Louis, Réunion Reunion 1,572 km (-21.286, 55.411)
Sainte-Rose, Réunion Reunion 1,572 km (-21.129, 55.796)
Entre-Deux, Réunion Reunion 1,575 km (-21.233, 55.467)
Souillac, Savanne Mauritius 1,575 km (-20.517, 57.517)
Surinam, Savanne Mauritius 1,576 km (-20.510, 57.505)

Ontario, United States

Local time:

Coordinates: 34.0633° N 117.6509° W

Saint-Philippe, Reunion

Local time:

Coordinates: 21.3609° S 55.7679° E

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 Ontario

The DMS coordinates are: 34°3'48'' N 117°39'3.2'' W.

Calculations are easier by using the decimal format, hence:

LatO = 34.06334°

LngO = -117.65089°

Step 2: Calculate the latitude

LatA = - LatO = -34.06334°

Since the latitude is positive (north direction), the antipode must be negative (south direction).

Step 3: Calculate the longitude

LngA = LngO ± 180° = -117.65089 + 180° = 62.34911°

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 Ontario is located on coordinates: (LatA, LngA) = (-34.06334, 62.34911)

In DMS format: 34°3'48'' N 117°39'3.2'' W.

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