Earth Sandwich / City antipodes / Tianjin

Antipode finder · China

The antipode of
Tianjin.

Draw a straight line from Tianjin (39.14° N, 117.18° E) through the centre of the Earth and it comes out at 39.14° S, 62.82° W, on dry land in Argentina, 22 km from Mayor Buratovich. An exact Earth sandwich is possible.

Two globes: one centred on Tianjin, one centred on its antipode at 39.14° S, 62.82° W
Above TianjinAbove the antipode
Tianjin
39.14° N, 117.18° E · about 40 m above sea level · 11,090,314 people
Antipode
39.14° S, 62.82° W
What is there
Dry land in Argentina
Nearest town
Mayor Buratovich, Argentina · 22 km from the antipode
Nearest big city
Buenos Aires · 640 km from the antipode
Sandwich verdict
EXACT land lies opposite land
Elevation bonus
+80 m (40 m here, 40 m there)

Can you make an Earth sandwich from Tianjin?

Yes: an exact Earth sandwich. Tianjin 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 Tianjin and have a friend put one down 22 km from Mayor Buratovich, Argentina at the same UTC minute, and the whole planet is the filling. The elevation bonus would be about 80 m: Tianjin sits about 40 m above sea level and the other slice about 40 m above sea level.

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.