Earth Sandwich / City antipodes / Batam
Antipode finder · Indonesia
The antipode of
Batam.
Draw a straight line from Batam (1.15° N, 104.02° E) through the centre of the Earth and it comes out at 1.15° S, 75.98° W, on dry land in Ecuador, 64 km from Tiputini. An exact Earth sandwich is possible.
- Batam
- 1.15° N, 104.02° E · about 40 m above sea level · 1,296,960 people
- Antipode
- 1.15° S, 75.98° W
- What is there
- Dry land in Ecuador
- Nearest town
- Tiputini, Ecuador · 64 km from the antipode
- Nearest big city
- Quito · 301 km from the antipode
- Sandwich verdict
- EXACT land lies opposite land
- Elevation bonus
- +240 m (40 m here, 200 m there)
Can you make an Earth sandwich from Batam?
Yes: an exact Earth sandwich. Batam 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 Batam and have a friend put one down 64 km from Tiputini, Ecuador at the same UTC minute, and the whole planet is the filling. The elevation bonus would be about 240 m: Batam sits about 40 m above sea level and the other slice about 200 m above sea level.
Batam 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.