Grid Point Code
Source on GitHub

Play

Lahore

PunjabPakistan

Grid Point Code for Lahore
With a code
#KMHC9-7FJ4P
Said aloud
Lahore 7FJ4P

Get the code for your door

What the code says

The Grid Point Code for Lahore is #KMHC9-7FJ4P. It names a cell 2.56 m north to south and 2.91 m east to west, centred on 31°33'28.77"N, 74°21'02.56"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 Lahore, near its centre.

Code
#KMHC9-7FJ4P
With a check character
#KMHC9-7FJ4P*4
Short form
7FJ4P
Cell centre
31.557992, 74.350710
Cell size
2.56 m by 2.91 m
Region
Punjab
Country
Pakistan
Population
13,004,135

How to give this address

On a sign, a form or a delivery note

The whole code, #KMHC9-7FJ4P. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Punjab

Lahore 7FJ4P: 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 4.6 km east or west of Lahore. 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

#KMHC9-7FJ4P*4. 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 45.5 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. KMHCMetropolitan area40 km by 45.5 km
  2. KMHC9District8 km by 9.11 km
  3. KMHC97Suburb1.6 km by 1.82 km
  4. KMHC97FA few streets320 m by 364 m
  5. KMHC97FJBuilding64 m by 72.8 m
  6. KMHC97FJ4Entrance12.8 m by 14.6 m
  7. KMHC97FJ4PDoorway2.56 m by 2.91 m

More in Pakistan

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