Antipode of Grand-Case, Saint Martin

The opposite side of the world to Grand-Case is Dampier, Western Australia, Australia.

Grand-Case

Saint Martin

Continent: America

Coordinates: 18.105, -63.054

Antipodal point

Opposite side in the world

Continent: America

Coordinates: -18.105, 116.946

Dampier

Australia

Dampier is the closest city to Grand-Case's antipodal point (284 km).

The antipodal city to Grand-Case is Dampier. This means that, among all the populated locations in the world, the farthest city from Grand-Case is Dampier.

The distance from Grand-Case 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 Grand-Case

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

City Country Distance from antipode Coordinates
Dampier, WA Australia 284 km (-20.663, 116.713)
Wickham, WA Australia 285 km (-20.675, 117.138)
Bulgarra, WA Australia 290 km (-20.726, 116.857)
Karratha, WA Australia 292 km (-20.738, 116.846)
Pegs Creek, WA Australia 292 km (-20.738, 116.833)
Millars Well, WA Australia 292 km (-20.742, 116.817)
Nickol, WA Australia 293 km (-20.746, 116.795)
Baynton, WA Australia 293 km (-20.752, 116.801)
Karratha Industrial Estate, WA Australia 295 km (-20.772, 116.869)
Roebourne, WA Australia 296 km (-20.772, 117.146)

Grand-Case, Saint Martin

Local time:

Coordinates: 18.1048° N 63.0536° W

Dampier, Australia

Local time:

Coordinates: 20.6628° S 116.7126° 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 Grand-Case

The DMS coordinates are: 18°6'17.1'' N 63°3'12.9'' W.

Calculations are easier by using the decimal format, hence:

LatO = 18.10476°

LngO = -63.05358°

Step 2: Calculate the latitude

LatA = - LatO = -18.10476°

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

Step 3: Calculate the longitude

LngA = LngO ± 180° = -63.05358 + 180° = 116.94642°

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 Grand-Case is located on coordinates: (LatA, LngA) = (-18.10476, 116.94642)

In DMS format: 18°6'17.1'' N 63°3'12.9'' W.

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