Grid Point Code

Play

New York City

New YorkUnited States

With a code
#G3HN0-C7RHG
Said aloud
New York City C7RHG

Get the code for your door

What the code says

The Grid Point Code for New York City is #G3HN0-C7RHG. It names a cell 2.56 m north to south and 2.59 m east to west, centred on 40°42'51.38"N, 74°00'21.49"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 New York City, near its centre.

Code
#G3HN0-C7RHG
With a check character
#G3HN0-C7RHG*X
Short form
C7RHG
Cell centre
40.714272, -74.005970
Cell size
2.56 m by 2.59 m
Region
New York
Country
United States
Population
8,804,190

How to give this address

On a sign, a form or a delivery note

The whole code, #G3HN0-C7RHG. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in New York

New York City C7RHG: 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 New York City. 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

#G3HN0-C7RHG*X. 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 40.5 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. G3HNMetropolitan area40 km by 40.5 km
  2. G3HN0District8 km by 8.1 km
  3. G3HN0CSuburb1.6 km by 1.62 km
  4. G3HN0C7A few streets320 m by 324 m
  5. G3HN0C7RBuilding64 m by 64.8 m
  6. G3HN0C7RHEntrance12.8 m by 13 m
  7. G3HN0C7RHGDoorway2.56 m by 2.59 m

More in United States

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