Earth Sandwich / City antipodes / Zhengzhou
Antipode finder · China
The antipode of
Zhengzhou.
Draw a straight line from Zhengzhou (34.76° N, 113.65° E) through the centre of the Earth and it comes out at 34.76° S, 66.35° W, on dry land in Argentina, 57 km from Unión. An exact Earth sandwich is possible.
- Zhengzhou
- 34.76° N, 113.65° E · about 120 m above sea level · 4,253,913 people
- Antipode
- 34.76° S, 66.35° W
- What is there
- Dry land in Argentina
- Nearest town
- Unión, Argentina · 57 km from the antipode
- Nearest big city
- Santiago · 421 km from the antipode
- Sandwich verdict
- EXACT land lies opposite land
- Elevation bonus
- +560 m (120 m here, 440 m there)
Can you make an Earth sandwich from Zhengzhou?
Yes: an exact Earth sandwich. Zhengzhou 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 Zhengzhou and have a friend put one down 57 km from Unión, Argentina at the same UTC minute, and the whole planet is the filling. The elevation bonus would be about 560 m: Zhengzhou sits about 120 m above sea level and the other slice about 440 m above sea level.
Zhengzhou is on the China & Mongolia ↔ Argentina & Chile 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.