Earth Sandwich / City antipodes / Omdurman
Antipode finder · Sudan
The antipode of
Omdurman.
Draw a straight line from Omdurman (15.64° N, 32.48° E) through the centre of the Earth and it comes out at 15.64° S, 147.52° W, in the South Pacific Ocean, 37 km from the nearest dry land, off the coast of French Polynesia. A deli-grade Earth sandwich is possible.
- Omdurman
- 15.64° N, 32.48° E · about 360 m above sea level · 1,849,659 people
- Antipode
- 15.64° S, 147.52° W
- What is there
- The South Pacific Ocean; the sea floor there lies about 2,680 m below the surface
- Nearest dry land
- 37 km from the antipode, on the coast of French Polynesia
- Nearest town
- Tiarei, French Polynesia · 285 km from the antipode
- Nearest big city
- Auckland · 4,395 km from the antipode
- Sandwich verdict
- DELI dry land within 50 km of the antipode
Can you make an Earth sandwich from Omdurman?
Nearly: a deli-grade Earth sandwich. The antipode of Omdurman lies in the South Pacific Ocean, 37 km from the nearest dry land in French Polynesia. Sandwich Law allows a slice within 50 km of the true antipode, and the verifying grid rates Omdurman deli, so bread in Omdurman and bread near Tiarei, French Polynesia still count as one sandwich. The elevation bonus depends on the spot chosen for the dry slice.
Omdurman is on the The South Pacific ↔ the Sahara & Sahel 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.