Earth Sandwich / City antipodes / Bangkok
Antipode finder · Thailand
The antipode of
Bangkok.
Draw a straight line from Bangkok (13.75° N, 100.50° E) through the centre of the Earth and it comes out at 13.75° S, 79.50° W, in the South Pacific Ocean, 277 km from the nearest dry land. The other slice of an Earth sandwich would sink.
- Bangkok
- 13.75° N, 100.50° E · about 40 m above sea level · 5,104,476 people
- Antipode
- 13.75° S, 79.50° W
- What is there
- The South Pacific Ocean; the sea floor there lies about 4,440 m below the surface
- Nearest dry land
- 277 km from the antipode
- Nearest town
- Callao, Peru · 319 km from the antipode
- Nearest big city
- Callao · 319 km from the antipode
- Sandwich verdict
- SOGGY the other slice lands in open water
- Nearest exact spot
- 310 km away, 31 km from Anlong Reab, Cambodia ⇄ near Callao, Peru
Can you make an Earth sandwich from Bangkok?
No, not from Bangkok itself. The other slice would land in the South Pacific Ocean, 277 km from the nearest dry land, where the sea floor lies about 4,440 m below the surface. Boats do not count (Sandwich Law § 1.3).
The nearest place from which an exact Earth sandwich is possible is 310 km from Bangkok, 31 km from Anlong Reab, Cambodia. Its other slice would go down 9 km from Callao, Peru.
Bangkok is on the Vietnam, Cambodia & Thailand ↔ Peru 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.