Antipode of Saint Peter Port, Guernsey

The opposite side of the world to Saint Peter Port is Portobello, Otago, New Zealand.

Saint Peter Port

Guernsey

Continent: Europe

Coordinates: 49.460, -2.535

Antipodal point

South Pacific Ocean

Exact location on the other side of the world

Coordinates: -49.460, 177.465

Portobello

New Zealand

Portobello is the closest city to Saint Peter Port's antipodal point (650 km).

The antipodal city to Saint Peter Port is Portobello. This means that, among all the populated locations in the world, the farthest city from Saint Peter Port is Portobello.

The distance from Saint Peter Port to Portobello is about 19,000 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 Saint Peter Port

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

City Country Distance from antipode Coordinates
Portobello, Otago New Zealand 650 km (-45.850, 170.650)
Port Chalmers, Otago New Zealand 654 km (-45.817, 170.620)
Shiel Hill, Otago New Zealand 654 km (-45.888, 170.530)
Ravensbourne, Otago New Zealand 655 km (-45.867, 170.550)
Andersons Bay, Otago New Zealand 655 km (-45.888, 170.520)
Sawyers Bay, Otago New Zealand 655 km (-45.818, 170.600)
Musselburgh, Otago New Zealand 656 km (-45.888, 170.510)
Waverley, Otago New Zealand 656 km (-45.878, 170.520)
Saint Kilda, Otago New Zealand 656 km (-45.898, 170.490)
South Dunedin, Otago New Zealand 657 km (-45.888, 170.490)
Saint Peter Port, Guernsey

Local time:

Time Zone: Europe/Guernsey

Coordinates: 49.4598° N 2.5353° W

Elevation: 10 m (33 ft)

Portobello, New Zealand

Local time:

Time Zone: Pacific/Auckland

Coordinates: 45.85° S 170.65° E

Elevation: 77 m (253 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 Saint Peter Port

The DMS coordinates are: 49°27'35.3'' N 2°32'7'' W.

Calculations are easier by using the decimal format, hence:

LatO = 49.45981°

LngO = -2.53527°

Step 2: Calculate the latitude

LatA = - LatO = -49.45981°

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

Step 3: Calculate the longitude

LngA = LngO ± 180° = -2.53527 + 180° = 177.46473°

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 Saint Peter Port is located on coordinates: (LatA, LngA) = (-49.45981, 177.46473)

In DMS format: 49°27'35.3'' N 2°32'7'' W.

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