View source for Berlin/A2 map

==Calculations==
{| class="wikitable sortable"
! Reference
! Object
! Unit
! W-E
! N-S
! Note
|-
| Distance using ISO 216 A2
| Map (full)
| mm
| = 594 mm
| = 420 mm
|
|-
| Distance using ISO 216 A2 and 300dpi
| Map (full)
| px
| 594 mm * <br>(300 px/in) / (25.4 mm/in) <br>= 7016 px
| 420 mm * <br>(300 px/in) / (25.4 mm/in) <br>= 4961 px
|
|-
| Distance using ISO 216 A2 and scale 1:25000
| Real world on full map
| m
| 594 mm * 25000<br>= 14850 m
| 420 mm * 25000<br>= 10500 m
|
|-
| Distance of one degee using MSI and 52.51 N
* [http://msi.nga.mil/MSISiteContent/StaticFiles/Calculators/degree.html msi.nga.mil]
| Real world (1°)
| m
| = 111277 m 
| = 67895 m
| 
|-
| Distance using MSI data and 52.51 N
| Real world on full map
| °
| 1° * 14850/111277 <br>= 0.13345075801°
| 1° * 10500/67895 <br>= 0.15465056337°
| 
|-
| Distance of one kilometer real world using scale 1:25000
| Map (part)
| mm
| 1000000 mm / 25000<br>= 40 mm
| 1000000 mm  /25000<br>= 40 mm
|
|-
| Distance of one kilometer real world using scale 1:25000 and 300dpi
| Map (part)
| px
| 1000000 mm / 25000 * <br>(300 px/in) / (25.4 mm/in) <br>= 472.4409 px
| 1000000 mm / 25000 * <br>(300 px/in) / (25.4 mm/in) <br>= 472.4409 px
|
|-
| Online map 52.51 N, 13.38 E
* https://google.com/maps?ll=52.51,13.38
* http://osm.org/#map=12/52.51/13.38&layers=Q
| Map
| (N/A)
| (N/A)
| (N/A)
| 
|}

==Existing maps==
Printed maps in a scale of ~1:25 000 have been found that where published by:
* BVG (public transport provider) - no licenses anymore
* Cartogis - not the whole S-Bahn-Ring
* Dinamix - not the whole S-Bahn-Ring
* Kartopolis http://www.kartopolis.de/stadtplaene.html
* Pharus - errors in map, e.g. Wilmersdorfer Str. marked as S-Bahn
* Planpromotion - restricted readability of street labels - not the whole S-Bahn-Ring

Online there are:
* http://milvusmap.eu - maximum scale 1:10000
* http://scalablemaps.com/place/berlin - maximum scale 1:11000

Print map mentioned online:
* http://kartographie.de/dwnload/Stadtpl%C3%A4ne.pdf 1:20000
* http://www.amazon.com/Berlin-Street-special-folding-compatible/dp/3826406761 (MairDumont) 1:25000