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Defining and changing unknown CRS into WGS84

Identifying Coordinate System of Shapefile when Unknown?How to adjust/convert/transform set of points with unknown crs using reference pointsTrying to match delimited text layer to shapefileChanging the CRS of a shapefileUnknown spatial reference in “Create Fishnet” filesConverting PLUTO coordinate reference system in QGIS?Defining CRS for objects in KyrgyzstanTransforming map with “custom” CRS to WGS84?

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margin-bottom:0;

3

I came across a shapefile (no information available about the original CRS) with some unknown Reference System (City of Stuttgart in Germany). Example of coordinates looks like 3465878, 5482952. I assume it is lat/lon.

How can I change the CRS to the decimal system of WGS84 with QGIS 3?

Is it possible to overlay it to another shapefile with the borders and match the CRS?

coordinate-system shapefile qgis-3

share|improve this question

edited Oct 1 at 15:03

Taras

4,62133 gold badges1010 silver badges3838 bronze badges

asked Oct 1 at 12:59

MaxMax

3111 bronze badge

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You need to determine the original CRS to be able to apply the correct transformation to WGS84. see this to learn how :gis.stackexchange.com/questions/7839/…
  
  – J.R
  Oct 1 at 13:19
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Have you tried one of Zones from DHDN / 3-degree Gauß-Krüger, or one Zone from ETRS89 UTM North?
  
  – Taras
  Oct 1 at 13:25
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  3465878, 5482952 (I assume lat/lon)) Obviously not lat long otherwise you'd expect lat values +/- 90 degrees and long +/- 180 degrees but your values are in the 100,000's so more likely to be units of metres
  
  – nmtoken
  Oct 1 at 13:34
  

  
  
  
  

add a comment
 | 

3

I came across a shapefile (no information available about the original CRS) with some unknown Reference System (City of Stuttgart in Germany). Example of coordinates looks like 3465878, 5482952. I assume it is lat/lon.

How can I change the CRS to the decimal system of WGS84 with QGIS 3?

Is it possible to overlay it to another shapefile with the borders and match the CRS?

coordinate-system shapefile qgis-3

share|improve this question

edited Oct 1 at 15:03

Taras

4,62133 gold badges1010 silver badges3838 bronze badges

asked Oct 1 at 12:59

MaxMax

3111 bronze badge

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You need to determine the original CRS to be able to apply the correct transformation to WGS84. see this to learn how :gis.stackexchange.com/questions/7839/…
  
  – J.R
  Oct 1 at 13:19
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Have you tried one of Zones from DHDN / 3-degree Gauß-Krüger, or one Zone from ETRS89 UTM North?
  
  – Taras
  Oct 1 at 13:25
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  3465878, 5482952 (I assume lat/lon)) Obviously not lat long otherwise you'd expect lat values +/- 90 degrees and long +/- 180 degrees but your values are in the 100,000's so more likely to be units of metres
  
  – nmtoken
  Oct 1 at 13:34
  

  
  
  
  

add a comment
 | 

I came across a shapefile (no information available about the original CRS) with some unknown Reference System (City of Stuttgart in Germany). Example of coordinates looks like 3465878, 5482952. I assume it is lat/lon.

How can I change the CRS to the decimal system of WGS84 with QGIS 3?

Is it possible to overlay it to another shapefile with the borders and match the CRS?

coordinate-system shapefile qgis-3

share|improve this question

edited Oct 1 at 15:03

Taras

4,62133 gold badges1010 silver badges3838 bronze badges

asked Oct 1 at 12:59

MaxMax

3111 bronze badge

share|improve this question

edited Oct 1 at 15:03

Taras

4,62133 gold badges1010 silver badges3838 bronze badges

asked Oct 1 at 12:59

MaxMax

3111 bronze badge

share|improve this question

edited Oct 1 at 15:03

Taras

4,62133 gold badges1010 silver badges3838 bronze badges

asked Oct 1 at 12:59

MaxMax

3111 bronze badge

edited Oct 1 at 15:03

Taras

4,62133 gold badges1010 silver badges3838 bronze badges

edited Oct 1 at 15:03

Taras

4,62133 gold badges1010 silver badges3838 bronze badges

asked Oct 1 at 12:59

MaxMax

3111 bronze badge

asked Oct 1 at 12:59

MaxMax

3111 bronze badge

2 Answers
2

active

oldest

votes

6

Step 1. Defining unknown CRS

I would suggest double-checking if suddenly there is a prj-file, placed in the shapefile location.

If not, you can try using projfinder. For instance, when one tried it with provided coordinates (3465878, 5482952)

There are two options:

• 
  EPSG:31467 Name:DHDN / 3-degree Gauss-Kruger zone 3, as was mentioned by @MrXsquared


• 
  EPSG:31463 Name:DHDN / 3-degree Gauss zone 3 (deprecated)

I would proceed with EPSG:31467 because EPSG:31463 is not maintained anymore.

EPSG:31467

DHDN / 3-degree Gauss-Kruger Zone 3

WGS84 Bounds: 7.5000, 47.2700, 10.5000, 55.0600

Projected Bounds: 3386564.9400, 5237917.9109, 3613579.2251, 6104500.7393

Scope: Large and medium scale topographic mapping and engineering survey, cadastral survey

Last Revised: Sept. 24, 2008

Area: Germany - 7.5°E to 10.5°E

Step 2. Changing unknown CRS into WGS84

It is already a well-known topic in the GIS domain. So, I would highly suggest to simply searching it online.

There are several references that I may point out:

• QGIS Docs | 7.1.3. moderate Follow Along: Saving a Dataset to Another CRS


• How to Change the Projection of a Shapefile Using QGIS


• 
  Step Three: Export your shapefile as WGS 84

Step 3. Overlaying with another shapefile

The vital trick is that all of your shapefiles that have to be overlapped must match the same CRS.

share|improve this answer

edited Oct 10 at 7:04

answered Oct 1 at 14:53

TarasTaras

4,62133 gold badges1010 silver badges3838 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Very useful website. Will bookmark it.
  
  – MrXsquared
  Oct 1 at 14:57
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Yeap, Mr. @spacedman first demonstrated it to me
  
  – Taras
  Oct 1 at 14:59
  

  
  
  
  

add a comment
 | 

2

I am pretty sure this is GK3 (EPSG:31467).

Go to layer properties --> Source and set source CRS to EPSG:31467

Then do the transformation (Export as...) to WGS84.

If everything is located perfectly, you are good to go. (If not, I was wrong about the CRS...)

share|improve this answer

answered Oct 1 at 14:45

MrXsquaredMrXsquared

4,66522 gold badges1515 silver badges2929 bronze badges

add a comment
 | 

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6

Step 1. Defining unknown CRS

I would suggest double-checking if suddenly there is a prj-file, placed in the shapefile location.

If not, you can try using projfinder. For instance, when one tried it with provided coordinates (3465878, 5482952)

There are two options:

• 
  EPSG:31467 Name:DHDN / 3-degree Gauss-Kruger zone 3, as was mentioned by @MrXsquared


• 
  EPSG:31463 Name:DHDN / 3-degree Gauss zone 3 (deprecated)

I would proceed with EPSG:31467 because EPSG:31463 is not maintained anymore.

EPSG:31467

DHDN / 3-degree Gauss-Kruger Zone 3

WGS84 Bounds: 7.5000, 47.2700, 10.5000, 55.0600

Projected Bounds: 3386564.9400, 5237917.9109, 3613579.2251, 6104500.7393

Scope: Large and medium scale topographic mapping and engineering survey, cadastral survey

Last Revised: Sept. 24, 2008

Area: Germany - 7.5°E to 10.5°E

Step 2. Changing unknown CRS into WGS84

It is already a well-known topic in the GIS domain. So, I would highly suggest to simply searching it online.

There are several references that I may point out:

• QGIS Docs | 7.1.3. moderate Follow Along: Saving a Dataset to Another CRS


• How to Change the Projection of a Shapefile Using QGIS


• 
  Step Three: Export your shapefile as WGS 84

Step 3. Overlaying with another shapefile

The vital trick is that all of your shapefiles that have to be overlapped must match the same CRS.

share|improve this answer

edited Oct 10 at 7:04

answered Oct 1 at 14:53

TarasTaras

4,62133 gold badges1010 silver badges3838 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Very useful website. Will bookmark it.
  
  – MrXsquared
  Oct 1 at 14:57
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Yeap, Mr. @spacedman first demonstrated it to me
  
  – Taras
  Oct 1 at 14:59
  

  
  
  
  

add a comment
 | 

6

Step 1. Defining unknown CRS

I would suggest double-checking if suddenly there is a prj-file, placed in the shapefile location.

If not, you can try using projfinder. For instance, when one tried it with provided coordinates (3465878, 5482952)

There are two options:

• 
  EPSG:31467 Name:DHDN / 3-degree Gauss-Kruger zone 3, as was mentioned by @MrXsquared


• 
  EPSG:31463 Name:DHDN / 3-degree Gauss zone 3 (deprecated)

I would proceed with EPSG:31467 because EPSG:31463 is not maintained anymore.

EPSG:31467

DHDN / 3-degree Gauss-Kruger Zone 3

WGS84 Bounds: 7.5000, 47.2700, 10.5000, 55.0600

Projected Bounds: 3386564.9400, 5237917.9109, 3613579.2251, 6104500.7393

Scope: Large and medium scale topographic mapping and engineering survey, cadastral survey

Last Revised: Sept. 24, 2008

Area: Germany - 7.5°E to 10.5°E

Step 2. Changing unknown CRS into WGS84

It is already a well-known topic in the GIS domain. So, I would highly suggest to simply searching it online.

There are several references that I may point out:

• QGIS Docs | 7.1.3. moderate Follow Along: Saving a Dataset to Another CRS


• How to Change the Projection of a Shapefile Using QGIS


• 
  Step Three: Export your shapefile as WGS 84

Step 3. Overlaying with another shapefile

The vital trick is that all of your shapefiles that have to be overlapped must match the same CRS.

share|improve this answer

edited Oct 10 at 7:04

answered Oct 1 at 14:53

TarasTaras

4,62133 gold badges1010 silver badges3838 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Very useful website. Will bookmark it.
  
  – MrXsquared
  Oct 1 at 14:57
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Yeap, Mr. @spacedman first demonstrated it to me
  
  – Taras
  Oct 1 at 14:59
  

  
  
  
  

add a comment
 | 

Step 1. Defining unknown CRS

I would suggest double-checking if suddenly there is a prj-file, placed in the shapefile location.

If not, you can try using projfinder. For instance, when one tried it with provided coordinates (3465878, 5482952)

There are two options:

• 
  EPSG:31467 Name:DHDN / 3-degree Gauss-Kruger zone 3, as was mentioned by @MrXsquared


• 
  EPSG:31463 Name:DHDN / 3-degree Gauss zone 3 (deprecated)

I would proceed with EPSG:31467 because EPSG:31463 is not maintained anymore.

EPSG:31467

DHDN / 3-degree Gauss-Kruger Zone 3

WGS84 Bounds: 7.5000, 47.2700, 10.5000, 55.0600

Projected Bounds: 3386564.9400, 5237917.9109, 3613579.2251, 6104500.7393

Scope: Large and medium scale topographic mapping and engineering survey, cadastral survey

Last Revised: Sept. 24, 2008

Area: Germany - 7.5°E to 10.5°E

Step 2. Changing unknown CRS into WGS84

It is already a well-known topic in the GIS domain. So, I would highly suggest to simply searching it online.

There are several references that I may point out:

• QGIS Docs | 7.1.3. moderate Follow Along: Saving a Dataset to Another CRS


• How to Change the Projection of a Shapefile Using QGIS


• 
  Step Three: Export your shapefile as WGS 84

Step 3. Overlaying with another shapefile

The vital trick is that all of your shapefiles that have to be overlapped must match the same CRS.

share|improve this answer

edited Oct 10 at 7:04

answered Oct 1 at 14:53

TarasTaras

4,62133 gold badges1010 silver badges3838 bronze badges

share|improve this answer

edited Oct 10 at 7:04

answered Oct 1 at 14:53

TarasTaras

4,62133 gold badges1010 silver badges3838 bronze badges

answered Oct 1 at 14:53

TarasTaras

4,62133 gold badges1010 silver badges3838 bronze badges

answered Oct 1 at 14:53

TarasTaras

4,62133 gold badges1010 silver badges3838 bronze badges

2

I am pretty sure this is GK3 (EPSG:31467).

Go to layer properties --> Source and set source CRS to EPSG:31467

Then do the transformation (Export as...) to WGS84.

If everything is located perfectly, you are good to go. (If not, I was wrong about the CRS...)

share|improve this answer

answered Oct 1 at 14:45

MrXsquaredMrXsquared

4,66522 gold badges1515 silver badges2929 bronze badges

add a comment
 | 

2

I am pretty sure this is GK3 (EPSG:31467).

Go to layer properties --> Source and set source CRS to EPSG:31467

Then do the transformation (Export as...) to WGS84.

If everything is located perfectly, you are good to go. (If not, I was wrong about the CRS...)

share|improve this answer

answered Oct 1 at 14:45

MrXsquaredMrXsquared

4,66522 gold badges1515 silver badges2929 bronze badges

add a comment
 | 

I am pretty sure this is GK3 (EPSG:31467).

Go to layer properties --> Source and set source CRS to EPSG:31467

Then do the transformation (Export as...) to WGS84.

If everything is located perfectly, you are good to go. (If not, I was wrong about the CRS...)

share|improve this answer

answered Oct 1 at 14:45

MrXsquaredMrXsquared

4,66522 gold badges1515 silver badges2929 bronze badges

share|improve this answer

answered Oct 1 at 14:45

MrXsquaredMrXsquared

4,66522 gold badges1515 silver badges2929 bronze badges

answered Oct 1 at 14:45

MrXsquaredMrXsquared

4,66522 gold badges1515 silver badges2929 bronze badges

answered Oct 1 at 14:45

MrXsquaredMrXsquared

4,66522 gold badges1515 silver badges2929 bronze badges