Earth Sandwich / City antipodes / Jeddah

Antipode finder · Saudi Arabia

The antipode of
Jeddah.

Draw a straight line from Jeddah (21.49° N, 39.19° E) through the centre of the Earth and it comes out at 21.49° S, 140.81° W, in the South Pacific Ocean, 24 km from the nearest dry land, off the coast of French Polynesia. A deli-grade Earth sandwich is possible.

Two globes: one centred on Jeddah, one centred on its antipode at 21.49° S, 140.81° W
Above JeddahAbove the antipode
Jeddah
21.49° N, 39.19° E · at about sea level · 4,697,000 people
Antipode
21.49° S, 140.81° W
What is there
The South Pacific Ocean; the sea floor there lies about 4,120 m below the surface
Nearest dry land
24 km from the antipode, on the coast of French Polynesia
Nearest town
Otepa, French Polynesia · 376 km from the antipode
Nearest big city
Auckland · 4,590 km from the antipode
Sandwich verdict
DELI dry land within 50 km of the antipode

Can you make an Earth sandwich from Jeddah?

Nearly: a deli-grade Earth sandwich. The antipode of Jeddah lies in the South Pacific Ocean, 24 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 Jeddah deli, so bread in Jeddah and bread near Otepa, French Polynesia still count as one sandwich. The elevation bonus depends on the spot chosen for the dry slice.

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.