Earth Sandwich / City antipodes / Tangerang
Antipode finder · Indonesia
The antipode of
Tangerang.
Draw a straight line from Tangerang (6.18° S, 106.63° E) through the centre of the Earth and it comes out at 6.18° N, 73.37° W, on dry land in Colombia, 9 km from Guadalupe. An exact Earth sandwich is possible.
- Tangerang
- 6.18° S, 106.63° E · about 40 m above sea level · 1,927,815 people
- Antipode
- 6.18° N, 73.37° W
- What is there
- Dry land in Colombia
- Nearest town
- Guadalupe, Colombia · 9 km from the antipode
- Nearest big city
- Bogotá · 191 km from the antipode
- Sandwich verdict
- EXACT land lies opposite land
- Elevation bonus
- +1,840 m (40 m here, 1,800 m there)
Can you make an Earth sandwich from Tangerang?
Yes: an exact Earth sandwich. 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 Tangerang and have a friend put one down 9 km from Guadalupe, Colombia at the same UTC minute, and the whole planet is the filling. The elevation bonus would be about 1,840 m: Tangerang sits about 40 m above sea level and the other slice about 1,800 m above sea level.
Tangerang is on the Indonesia & Malaysia ↔ Colombia, Ecuador & the Amazon corridor. Its guide lists where every city on both sides lands and how to make an Earth sandwich there.
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.