Earth Sandwich / City antipodes / Biên Hòa
Antipode finder · Vietnam
The antipode of
Biên Hòa.
Draw a straight line from Biên Hòa (10.94° N, 106.82° E) through the centre of the Earth and it comes out at 10.94° S, 73.18° W, on dry land in Peru, 27 km from Sepahua. An exact Earth sandwich is possible.
- Biên Hòa
- 10.94° N, 106.82° E · about 40 m above sea level · 1,272,235 people
- Antipode
- 10.94° S, 73.18° W
- What is there
- Dry land in Peru
- Nearest town
- Sepahua, Peru · 27 km from the antipode
- Nearest big city
- Lima · 437 km from the antipode
- Sandwich verdict
- EXACT land lies opposite land
- Elevation bonus
- +320 m (40 m here, 280 m there)
Can you make an Earth sandwich from Biên Hòa?
Yes: an exact Earth sandwich. Biên Hòa 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 Biên Hòa and have a friend put one down 27 km from Sepahua, Peru at the same UTC minute, and the whole planet is the filling. The elevation bonus would be about 320 m: Biên Hòa sits about 40 m above sea level and the other slice about 280 m above sea level.
Biên Hòa 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.