Grid Point Code

Play

Wuchang

HubeiChina

With a code
#KJ7W0-6XNNH
Said aloud
Wuchang 6XNNH

Get the code for your door

What the code says

The Grid Point Code for Wuchang is #KJ7W0-6XNNH. It names a cell 2.56 m north to south and 2.95 m east to west, centred on 30°32'35.34"N, 114°18'02.47"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 Wuchang, near its centre.

Code
#KJ7W0-6XNNH
With a check character
#KJ7W0-6XNNH*7
Short form
6XNNH
Cell centre
30.543149, 114.300687
Cell size
2.56 m by 2.95 m
Region
Hubei
Country
China
Population
1,102,188

How to give this address

On a sign, a form or a delivery note

The whole code, #KJ7W0-6XNNH. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Hubei

Wuchang 6XNNH: 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 Wuchang. 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

#KJ7W0-6XNNH*7. 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 46 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. KJ7WMetropolitan area40 km by 46 km
  2. KJ7W0District8 km by 9.2 km
  3. KJ7W06Suburb1.6 km by 1.84 km
  4. KJ7W06XA few streets320 m by 368 m
  5. KJ7W06XNBuilding64 m by 73.6 m
  6. KJ7W06XNNEntrance12.8 m by 14.7 m
  7. KJ7W06XNNHDoorway2.56 m by 2.95 m

More in China

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