Antipode of Eureka, United States

The opposite side of the world to Eureka is Port-aux-Français, Kerguelen, French Southern Territories.


United States

Continent: America

Coordinates: 40.802, -124.164

Antipodal point

Opposite side in the world

Continent: America

Coordinates: -40.802, 55.836


French Southern Territories

Port-aux-Français is the closest city to Eureka' antipodal point (1,474 km).

The antipodal city to Eureka is Port-aux-Français. This means that, among all the populated locations in the world, the farthest city from Eureka is Port-aux-Français.

The distance from Eureka to Port-aux-Français is about 19,000 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 Eureka

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

City Country Distance from antipode Coordinates
Port-aux-Français, Kerguelen French Southern Territories 1,474 km (-49.349, 70.219)
Tôlanaro, Anosy Madagascar 1,932 km (-25.032, 46.983)
Ambovombe, Androy Madagascar 1,955 km (-25.178, 46.087)
Amboasary, Anosy Madagascar 1,957 km (-25.033, 46.383)
Tsiombe, Androy Madagascar 1,969 km (-25.300, 45.483)
Kopoky, Androy Madagascar 1,992 km (-25.200, 45.200)
Tranovaho, Androy Madagascar 1,993 km (-25.300, 44.967)
Beloha, Androy Madagascar 2,002 km (-25.167, 45.050)
Ampanihy, Atsimo-Andrefana Madagascar 2,063 km (-24.694, 44.746)
Vohipaho, Atsimo-Atsinanana Madagascar 2,066 km (-23.550, 47.500)

Eureka, United States

Local time:

Coordinates: 40.8021° N 124.1637° W

Port-aux-Français, French Southern Territories

Local time:

Coordinates: 49.3492° S 70.2194° 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 Eureka

The DMS coordinates are: 40°48'7.5'' N 124°9'49.2'' W.

Calculations are easier by using the decimal format, hence:

LatO = 40.80207°

LngO = -124.16367°

Step 2: Calculate the latitude

LatA = - LatO = -40.80207°

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

Step 3: Calculate the longitude

LngA = LngO ± 180° = -124.16367 + 180° = 55.83633°

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.


The antipode of Eureka is located on coordinates: (LatA, LngA) = (-40.80207, 55.83633)

In DMS format: 40°48'7.5'' N 124°9'49.2'' W.

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