Grid Point Code

Play

Pretoria

GautengSouth Africa

With a code
#8FWMG-GP2XL
Said aloud
Pretoria GP2XL

Get the code for your door

What the code says

The Grid Point Code for Pretoria is #8FWMG-GP2XL. It names a cell 2.56 m north to south and 3.08 m east to west, centred on 25°44'41.50"S, 28°11'16.18"E, and it turns back into that cell on any phone or computer by arithmetic alone: no network, no account, no lookup table.

The point used is the one GeoNames records for Pretoria, near its centre, and Pretoria is the capital of South Africa.

Code
#8FWMG-GP2XL
With a check character
#8FWMG-GP2XL*L
Short form
GP2XL
Cell centre
-25.744861, 28.187827
Cell size
2.56 m by 3.08 m
Region
Gauteng
Country
South Africa
Population
2,112,693

How to give this address

On a sign, a form or a delivery note

The whole code, #8FWMG-GP2XL. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Gauteng

Pretoria GP2XL: a name both people know, then the last five characters. They give back the exact code for anywhere within 4.0 km north or south and 4.8 km east or west of Pretoria. Further away the same five name somewhere else, which is why the whole code is what goes on a sign.

Copied by hand, or read over a phone

#8FWMG-GP2XL*L. The character on the end catches any single mistyped symbol and any two neighbours swapped.

As a link or a square code

Open it on the map, move to the exact door, and add directions if the code needs help: "blue gate, second floor". The link and the square code carry them. Nothing is kept on this site.

From the city to the door

The first four characters name a cell about 40 km by 48.1 km here. Each one after that picks one of 25 inside the last, so the whole ten name a spot about the size of a doorway.

  1. 8FWMMetropolitan area40 km by 48.1 km
  2. 8FWMGDistrict8 km by 9.63 km
  3. 8FWMGGSuburb1.6 km by 1.93 km
  4. 8FWMGGPA few streets320 m by 385 m
  5. 8FWMGGP2Building64 m by 77 m
  6. 8FWMGGP2XEntrance12.8 m by 15.4 m
  7. 8FWMGGP2XLDoorway2.56 m by 3.08 m

More in South Africa

City, region and population from GeoNames, under CC BY 4.0.