Antipode of Portland, United States
The opposite side of the world to Portland is Augusta, Western Australia, Australia.
Portland
United States
Continent: America
Coordinates: 43.657, -70.259
Antipodal point
Indian Ocean
Exact location on the other side of the world
Coordinates: -43.657, 109.741
Augusta
Australia
Augusta is the closest city to Portland's antipodal point (1,138 km).
The antipodal city to Portland is Augusta. This means that, among all the populated locations in the world, the farthest city from Portland is Augusta.
The distance from Portland to Augusta 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 Portland
This table contains the populated locations that are closest to Portland's antipode. These are the farthest cities in the world from Portland.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Augusta, WA | Australia | 1,138 km | (-34.316, 115.159) |
| Ocean Beach, WA | Australia | 1,158 km | (-35.014, 117.290) |
| Pemberton, WA | Australia | 1,158 km | (-34.443, 116.037) |
| Shadforth, WA | Australia | 1,162 km | (-34.964, 117.269) |
| Gnarabup, WA | Australia | 1,165 km | (-33.993, 114.996) |
| Denmark, WA | Australia | 1,166 km | (-34.961, 117.353) |
| Youngs, WA | Australia | 1,169 km | (-35.017, 117.517) |
| Margaret River, WA | Australia | 1,172 km | (-33.955, 115.076) |
| Grasmere, WA | Australia | 1,181 km | (-35.018, 117.756) |
| Little Grove, WA | Australia | 1,182 km | (-35.068, 117.872) |
Local time:
Time Zone: America/New_York
Coordinates: 43.6574° N 70.2589° W
Elevation: 31 m (102 ft)
Local time:
Time Zone: Australia/Perth
Coordinates: 34.3157° S 115.1592° E
Elevation: 37 m (121 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 Portland
The DMS coordinates are: 43°39'26.5'' N 70°15'32'' W.
Calculations are easier by using the decimal format, hence:
LatO = 43.65737°
LngO = -70.2589°
Step 2: Calculate the latitude
LatA = - LatO = -43.65737°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -70.2589 + 180° = 109.7411°
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 Portland is located on coordinates: (LatA, LngA) = (-43.65737, 109.7411)
In DMS format: 43°39'26.5'' N 70°15'32'' W.