Grid Point Code

Play

Tianjin

China

With a code
#KX699-L93K9
Said aloud
Tianjin L93K9

Get the code for your door

What the code says

The Grid Point Code for Tianjin is #KX699-L93K9. It names a cell 2.56 m north to south and 2.65 m east to west, centred on 39°08'32.03"N, 117°10'35.99"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 Tianjin, near its centre.

Code
#KX699-L93K9
With a check character
#KX699-L93K9*N
Short form
L93K9
Cell centre
39.142230, 117.176663
Cell size
2.56 m by 2.65 m
Country
China
Population
13,866,009

How to give this address

On a sign, a form or a delivery note

The whole code, #KX699-L93K9. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in China

Tianjin L93K9: 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 4.1 km east or west of Tianjin. 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

#KX699-L93K9*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 41.4 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. KX69Metropolitan area40 km by 41.4 km
  2. KX699District8 km by 8.29 km
  3. KX699LSuburb1.6 km by 1.66 km
  4. KX699L9A few streets320 m by 332 m
  5. KX699L93Building64 m by 66.3 m
  6. KX699L93KEntrance12.8 m by 13.3 m
  7. KX699L93K9Doorway2.56 m by 2.65 m

More in China

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