Earth Sandwich / City antipodes / Riyadh
Antipode finder · Saudi Arabia
The antipode of
Riyadh.
Draw a straight line from Riyadh (24.69° N, 46.72° E) through the centre of the Earth and it comes out at 24.69° S, 133.28° W, in the South Pacific Ocean, 190 km from the nearest dry land. A sloppy Earth sandwich is possible.
- Riyadh
- 24.69° N, 46.72° E · about 600 m above sea level · 4,205,961 people
- Antipode
- 24.69° S, 133.28° W
- What is there
- The South Pacific Ocean; the sea floor there lies about 3,960 m below the surface
- Nearest dry land
- 190 km from the antipode
- Nearest town
- Rikitea, French Polynesia · 245 km from the antipode
- Nearest big city
- Auckland · 5,081 km from the antipode
- Sandwich verdict
- SLOPPY dry land within 200 km of the antipode
Can you make an Earth sandwich from Riyadh?
Nearly: a sloppy-grade Earth sandwich. The antipode of Riyadh lies in the South Pacific Ocean, 190 km from the nearest dry land. Sandwich Law allows a slice within 200 km of the true antipode, and the verifying grid rates Riyadh sloppy, so bread in Riyadh and bread near Rikitea, French Polynesia still count as one sandwich. The elevation bonus depends on the spot chosen for the dry slice.
Riyadh 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.