Killet GeoSoftware Ing.-GbR - short: KilletSoft - is a software company, which was established in the year 1991. The society is divided into the ranges "Geodetic Standard Software", "Development Tools for Geoinformatics" and "German Geodata". The focal trades of the companies supplied by KilletSoft are consulting engineers, GIS developers, Internet marketing, public utilities, logistics, telecommunications, security and public services.
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ORTWIN - Cities and municipalities of the Federal Republic of Germany with current urban data

Localities View

ORTWIN is a program for the country-wide inquiry of the localities in Germany to find cities and towns, urban districts, postal zip codes, dialling codes, coordinates and elevations, landscape and climatic data and other urban data and also to perform perimeter searches and distance calculations.

ORTWIN - Version 20.02 - Last update on 30 January 2024
The latest larger changes link_pdf History of Modifications and Supplements

  1. All data applied updated to the data status January 1, 2024.
  2. New data Sunshine Duration and Precipitation Amount.
  3. New data Solar Irradiance in W/m2 and Regional Key.
  4. View of localities in OpenStreetMap, Google Maps, Google Earth.
  5. Determining the wind load zones and snow load zones.

City and Municipality Directory and Locality Research of the Federal Republic of Germany

Determining location data
Determining location data by different criteria

Determining location data
Postal radius search
Radius search on postal codes

Postal radius search
Nationwide overview
Nationwide overview with Federal States

Nationwide overview

ORTWIN is a program for the country-wide inquiry of the cities and towns, localities, postal codes and dialling codes in Germany. It finds postal zip codes, dialling codes, coordinates and ground level elevations. The program determines municipal codes, local center points, car license codes, topographic maps, Unlocodes and much more. It arranges localities hierarchically into the structures Federal State, Administrative District, Rural District, town, municipality, local quarter and domicile. The program performs perimeter searches and distance calculations. It finds landscapes on different levels, natural units and climatic data like snow- and wind load zones and solar irradiations, sunshine duration and precipitation amount of all localities.

ORTWIN - Detailed Program Description
A program for the research of the German cities, municipalities and urban districts with postal codes, telephone codes and coordinates

Award 2016 In a radius around a localitie or around a postal code area covered localities and postal areas can be clearly represented by a comfortable perimeter search. They can also be arranged in a list, stored as a file and printed.
For the local inquiries and perimeter searches a data base with more than 125.000 geocoded localities is available. The program represents local data, determined by local inquiries and perimeter searches, in graphic overviews and data lists.
The program supports conversions between different Coordinate Systems and the distance calculation between localities. It calculates with UTM coordinates on the reference system ETRS89 (GRS80 ellipsoid) and with geographic coordinates on the reference system WGS84. It also uses Gauss-Krueger coordinates referenced to the Potsdam datum (DHDN, Bessel ellipsoid) and Google PlusCodes.
Towns and town quarters can be determined by entering already known data in the input fields of the data window, by clicking on overview maps or by selecting from sorted lists. For the calculation, the values listed here can be entered directly in the input fields of the program:

  1. UTM coordinates
  2. Geographical coordinates in DMS notation
  3. Geographical coordinates in decimal notation
  4. Gauss-Kruger coordinates
  5. Google Plus Codes (Open Location Code OLC)
  6. Place names or quater names
  7. Municipality ID (8-digit municipality key)
  8. New postal code
  9. Old postal code
  10. Telephone pre-selection
  11. Two place names for distance calculation

For selection from separate windows are available:

  1. Nationwide graphical overview map
  2. List with place names sorted by Federal States
  3. List with place names sorted by Administrative Regions
  4. List with place names sorted by Rural Districts
  5. Overview map with locations and place names in the location window
  6. Radial search map of places and quarters in close range
  7. Radial search map of places in the far range
  8. Radial search map of the postal delivery areas and postcodes

In addition, the program offers the services listed here:

  1. High precision coordinate transformations
  2. Searching places using leading characters or using sting-in-string search
  3. Determining the center coordinates of localities
  4. Finding the nearest locality to the current coordinates
  5. Finding a place adjacent to the current location
  6. Determining the old and new postal codes
  7. Determining the telephone pre-selections and the telephone book numbers
  8. Determining the exact distance between localities
  9. Determining the appropriate topographic map TK25 of the locality
  10. Determining the political hierarchy (town quarter / municipality part, town / municipality, Rural District, Administrative District, Federal Atate)
  11. Determining the landscape types, natural areas and climate data
  12. Determining of snow and wind loads and solar data
  13. File output and printing of the various radial search lists
  14. Printing all characteristic values belonging to the current location
  15. Printing all graphically views
  16. File output of all window contents in GIF and BMP files
  17. Electronic help file manual
  18. At any time case-related help from the electronic manual
  19. etc.

Network ability

ORTWIN can be run on most common networks. The client installations works automatically. It is possible to use Terminal Services on WINDOWS Servers like e.g. "Citrix Terminal Server".

Hardware and operating system requirements

Because the program ORTWIN is a quite complex database application, some requirements to the hardware are to be fulfilled for its perfect working. To ensure stable performance it should be installed on a personal computer with the processor class Pentium or higher and at least 32 MB RAM available. The program will run under Microsoft WINDOWS 2000 / XP / NT / Vista / 7 / 8 / 10 / 11 and compatible operating systems.

Pricing, ordering and licensing

Pricing and ordering information can be found in the link_in Price list. For available licensing options have a look to the link_in License page. Order the program with the electronic link_in Order Form.

Download of the test version

The free test version of the program with a detailed user manual can be link_in downloaded as ZIP packed file by the Internet.

Use of an illegal program version

Managing Director Fred Killet explains why you should never use an link_in illegal version of our geodetic program ORTWIN.

KilletSoft News In order that you are always well informed about our company, we write actual news, current information and special offers here into this column.
KilletSoft Logo Geodata Germany
All databases has been updated to the data conditions of January 1st, 2024. The georeferenced databases contain all German towns, municipalities and urban districts, coordinates, postal codes, dialling codes, administrative units, nature areas, landscapes, travel areas, wind and snow loads, solar irradiation, cartographies info etc.
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KilletSoft Logo New work sheet
Modeling an NTv2 file under the aspect of economic efficiency.
link_in Read the work sheet...
KilletSoft Logo New work sheet
Display Formats of UTM Coordinates.
Display formats, calculation methods and the historical background of the UTM coordinate system.
Third revised edition of the popular technical article.
link_in Read the work sheet...
KilletSoft Logo New work sheet
What actually is a Coordinate Reference System?
Explanation of the Coordinate Reference System with the components Coordinate System, Reference System, Reference Definition and Reference Frame.
Second revised edition.
link_in Read the work sheet...
KilletSoft Logo Illegal software versions
The illegal use of our software got out of control!
link_in Read our Info...
KilletSoft Logo NTv2 collection
KilletSoft has brought together NTv2 files as a worldwide collection on a central website and linked for the direct download.
link_in Read the Press Release...
link_in To the NTv2 collection...
KilletSoft Logo is member of
VDV Logo
KilletSoft Logo Translators wanted!
The programs TRANSDAT, SEVENPAR, NTv2Creator, NTv2Poly and NTv2Tools support language files for the programs interface. Since the language dependent texts are managed in external files, link_in new languages can be added at any time by creating new language files. Everybody who is interested can translate a new language file into his native language for himself and all users.
Author: Dipl.-Ing. Fred Killet
Page name: p_orwa_e.htm
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Period: since Januar 1, 2024