Convert projection of shape file using QGIS

If your shape file is not valid, you can convert a projection of it using QGIS.
  1. Open QGIS.
  2. Click Layers > Add Layer > Add Vector Layer.
  3. Click Source and select the shape file or zipped shape file. The shape .zip file must contain the .shp, .dbf, and .prj files. The shape .zip file can also contain a .shx file that is used to increase the performance of the shape file. The .shx file is not required. If the shape .zip file does not include the required files, the import stops and an error is displayed.
  4. Select file for Source Type.
  5. Select UTF-8 for encoding.
  6. Click Add.
  7. Click Layers.
  8. Right-click the new layer.
  9. Click Export > Save Features As....
  10. On the Save Vector Layer as... window, click Browse.
  11. Navigate to the correct folder and specify the name of the new layer.
  12. In the Coordinate Reference System section, click The QGIS icon.
  13. In the CRS Selector window, in the Filter field, enter 3426.
  14. From the search results list, select WGS 84. The Authority ID is EPSG:4326.
  15. Click OK.
  16. Compare the old and new projections of the layer and verify that they are in two different CRS but still overlap.
    Convert projection of your shape file using QGIS