Earth Sandwich / City antipodes / South Tangerang
Antipode finder · Indonesia
The antipode of
South Tangerang.
Draw a straight line from South Tangerang (6.29° S, 106.72° E) through the centre of the Earth and it comes out at 6.29° N, 73.28° W, on dry land in Colombia, 3 km from Oiba. An exact Earth sandwich is possible.
- South Tangerang
- 6.29° S, 106.72° E · about 40 m above sea level · 1,429,529 people
- Antipode
- 6.29° N, 73.28° W
- What is there
- Dry land in Colombia
- Nearest town
- Oiba, Colombia · 3 km from the antipode
- Nearest big city
- Bogotá · 207 km from the antipode
- Sandwich verdict
- EXACT land lies opposite land
- Elevation bonus
- +1,520 m (40 m here, 1,480 m there)
Can you make an Earth sandwich from South Tangerang?
Yes: an exact Earth sandwich. South Tangerang is one of the few large cities with dry land directly opposite it. The grid that verifies submissions rates the spot exact: put a slice down in South Tangerang and have a friend put one down 3 km from Oiba, Colombia at the same UTC minute, and the whole planet is the filling. The elevation bonus would be about 1,520 m: South Tangerang sits about 40 m above sea level and the other slice about 1,480 m above sea level.
How this was worked out: the antipode flips the latitude and moves the longitude by 180°. Land or sea comes from the OpenStreetMap coastline the map uses; the sandwich verdict and elevations come from the verifier's 0.2° grid (Natural Earth land, ETOPO 2022 relief); water names from Natural Earth; towns and populations from GeoNames. The city's position is GeoNames' point for it; a big city's suburbs spread tens of kilometres around that point, and the figures move with them. Generated 2026-09-29.