Grid Point Code

Play

Hong Kong Island

Hong Kong

With a code
#KHF7P-7471K
Said aloud
Hong Kong Island 7471K

Get the code for your door

What the code says

The Grid Point Code for Hong Kong Island is #KHF7P-7471K. It names a cell 2.56 m north to south and 3.16 m east to west, centred on 22°15'46.84"N, 114°11'03.11"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 Hong Kong Island, near its centre.

Code
#KHF7P-7471K
With a check character
#KHF7P-7471K*N
Short form
7471K
Cell centre
22.263011, 114.184197
Cell size
2.56 m by 3.16 m
Country
Hong Kong
Population
1,195,529

How to give this address

On a sign, a form or a delivery note

The whole code, #KHF7P-7471K. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Hong Kong

Hong Kong Island 7471K: 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 4.9 km east or west of Hong Kong Island. 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

#KHF7P-7471K*N. 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 49.5 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. KHF7Metropolitan area40 km by 49.5 km
  2. KHF7PDistrict8 km by 9.89 km
  3. KHF7P7Suburb1.6 km by 1.98 km
  4. KHF7P74A few streets320 m by 396 m
  5. KHF7P747Building64 m by 79.1 m
  6. KHF7P7471Entrance12.8 m by 15.8 m
  7. KHF7P7471KDoorway2.56 m by 3.16 m

More in Hong Kong

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