Earth Sandwich / City antipodes / Buenos Aires
Antipode finder · Argentina
The antipode of
Buenos Aires.
Draw a straight line from Buenos Aires (34.61° S, 58.38° W) through the centre of the Earth and it comes out at 34.61° N, 121.62° E, in the Yellow Sea, 126 km from the nearest dry land, off the coast of China. A sloppy Earth sandwich is possible.
- Buenos Aires
- 34.61° S, 58.38° W · about 40 m above sea level · 2,891,082 people
- Antipode
- 34.61° N, 121.62° E
- What is there
- The Yellow Sea; the sea floor there lies about 40 m below the surface
- Nearest dry land
- 126 km from the antipode, on the coast of China
- Nearest town
- Hede, China · 156 km from the antipode
- Nearest big city
- Yancheng · 194 km from the antipode
- Sandwich verdict
- SLOPPY dry land within 200 km of the antipode
Can you make an Earth sandwich from Buenos Aires?
Nearly: a sloppy-grade Earth sandwich. The antipode of Buenos Aires lies in the Yellow Sea, 126 km from the nearest dry land in China. Sandwich Law allows a slice within 200 km of the true antipode, and the verifying grid rates Buenos Aires sloppy, so bread in Buenos Aires and bread near Hede, China still count as one sandwich. The elevation bonus depends on the spot chosen for the dry slice.
Buenos Aires 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.