Prague

What the code says

The Grid Point Code for Prague is #PWG4X-MJ7HX. It names a cell 2.56 m north to south and 2.19 m east to west, centred on 50°05'16.98"N, 14°25'14.70"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 Prague, near its centre, and Prague is the capital of Czechia.

Code

#PWG4X-MJ7HX

With a check character

#PWG4X-MJ7HX*T

Short form

MJ7HX

Cell centre

50.088050, 14.420751

Cell size

2.56 m by 2.19 m

Country

Czechia

Population

1,165,581

How to give this address

On a sign, a form or a delivery note

The whole code, #PWG4X-MJ7HX. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Czechia

Prague MJ7HX: 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 3.4 km east or west of Prague. 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

#PWG4X-MJ7HX*T. 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 34.3 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. 4PWG4Metropolitan area40 km by 34.3 km
2. XPWG4XDistrict8 km by 6.86 km
3. MPWG4XMSuburb1.6 km by 1.37 km
4. JPWG4XMJA few streets320 m by 274 m
5. 7PWG4XMJ7Building64 m by 54.9 m
6. HPWG4XMJ7HEntrance12.8 m by 11 m
7. XPWG4XMJ7HXDoorway2.56 m by 2.19 m

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