Earth Sandwich / City antipodes / Singapore

Antipode finder · Singapore

The antipode of
Singapore.

Draw a straight line from Singapore (1.29° N, 103.85° E) through the centre of the Earth and it comes out at 1.29° S, 76.15° W, on dry land in Ecuador, 89 km from Tiputini. An exact Earth sandwich is possible.

Two globes: one centred on Singapore, one centred on its antipode at 1.29° S, 76.15° W
Above SingaporeAbove the antipode
Singapore
1.29° N, 103.85° E · at about sea level · 5,638,700 people
Antipode
1.29° S, 76.15° W
What is there
Dry land in Ecuador
Nearest town
Tiputini, Ecuador · 89 km from the antipode
Nearest big city
Quito · 289 km from the antipode
Sandwich verdict
EXACT land lies opposite land
Elevation bonus
+160 m (-40 m here, 200 m there)

Can you make an Earth sandwich from Singapore?

Yes: an exact Earth sandwich. Singapore 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 Singapore and have a friend put one down 89 km from Tiputini, Ecuador at the same UTC minute, and the whole planet is the filling. The elevation bonus would be about 160 m: Singapore sits at about sea level and the other slice about 200 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.