Grid Point Code

Play

Borough Market

LondonEnglandUnited Kingdom

Without a code
Borough Market, London, and then directions
With a code
#R0NJ0-9K161
Said aloud
Borough Market 9K161

This code is one spot in Borough Market, a cell 2.56 m by 2.13 m. Every stall front and doorway in it has a code of its own.

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What the code says

The Grid Point Code for Borough Market is #R0NJ0-9K161. It names a cell 2.56 m north to south and 2.13 m east to west, centred on 51°30'20.03"N, 0°05'26.97"W, and it turns back into that cell on any phone or computer by arithmetic alone: no network, no account, no lookup table.

What it is
Food market in Southwark, Central London, England
Code
#R0NJ0-9K161
With a check character
#R0NJ0-9K161*C
Short form
9K161
Cell centre
51.505563, -0.090824
Cell size
2.56 m by 2.13 m
City
London
Region
England
Country
United Kingdom

How to give this address

On a sign, a form or a delivery note

The whole code, #R0NJ0-9K161. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in London

Borough Market 9K161: 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 3.3 km east or west of Borough Market. 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

#R0NJ0-9K161*C. 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 33.3 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. R0NJMetropolitan area40 km by 33.3 km
  2. R0NJ0District8 km by 6.65 km
  3. R0NJ09Suburb1.6 km by 1.33 km
  4. R0NJ09KA few streets320 m by 266 m
  5. R0NJ09K1Building64 m by 53.2 m
  6. R0NJ09K16Entrance12.8 m by 10.6 m
  7. R0NJ09K161Doorway2.56 m by 2.13 m

More in United Kingdom

Place and region from Wikidata, described on Wikipedia; city from GeoNames, under CC BY 4.0.