Grid Point Code

Play

Casablanca

Casablanca-SettatMorocco

With a code
#HJK5J-GF5W1
Said aloud
Casablanca GF5W1

Get the code for your door

What the code says

The Grid Point Code for Casablanca is #HJK5J-GF5W1. It names a cell 2.56 m north to south and 2.85 m east to west, centred on 33°35'17.88"N, 7°36'40.99"W, 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 Casablanca, near its centre.

Code
#HJK5J-GF5W1
With a check character
#HJK5J-GF5W1*D
Short form
GF5W1
Cell centre
33.588300, -7.611387
Cell size
2.56 m by 2.85 m
Region
Casablanca-Settat
Country
Morocco
Population
3,665,954

How to give this address

On a sign, a form or a delivery note

The whole code, #HJK5J-GF5W1. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Casablanca-Settat

Casablanca GF5W1: 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 4.5 km east or west of Casablanca. 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

#HJK5J-GF5W1*D. 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 44.5 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. HJK5Metropolitan area40 km by 44.5 km
  2. HJK5JDistrict8 km by 8.9 km
  3. HJK5JGSuburb1.6 km by 1.78 km
  4. HJK5JGFA few streets320 m by 356 m
  5. HJK5JGF5Building64 m by 71.2 m
  6. HJK5JGF5WEntrance12.8 m by 14.2 m
  7. HJK5JGF5W1Doorway2.56 m by 2.85 m

More in Morocco

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