# SAD69 (Brazil) Coordinates and Converting to Latitude and Longitude

I have a coordinates that I would like to plot on Google Earth. The coordinates I have appear to be in SAD69, a Brazilian projection. I need to convert them to latitude and longitude.

I tried importing into QGIS as a CSV file in SAD69 and then exporting as a CSV in WGS84. However, the coordinates I have do appear to be in the correct place. My point should be in central Brazil, however when open a SHP file of Brazil and add the point does not appear anywhere near Brazil at all.

The coordinates I have say:

``````SAD 69, MC 45° W
coordenadas Plano Retangulares Relativas, Sistema UTM: E=721320.945 e N =82009367.716
``````

As I understand it, when importing the coordinates into QGIS, `E=721320.945` is my X coordinate and `N =82009367.716` would be my Y coordinate.

Do I need any other data?

I don't understand what `MC 45° W` means in this context.

Based on the coordinates I have, using the SAD69 projection, the points don't seem to be in Brazil at all.

See screenshot:

• "the coordinates I have do appear to be in the correct place" - you rather mean: do NOT apear in the correct place, right? As @Pointdump already mentioned, you probably used the wrong CRS. In QGIS, you have different CRS available with SAAD69, both geographic and projected. Find out the correct one. If you need help, you should provide at least some examples of your data - coordinate values you have and correct location where they should appear: correspoinding correct lat/lon values. Oct 2, 2021 at 9:33
• Also make sure you correctly understand the use of projections/CRS - see e.g. here: gis.stackexchange.com/a/392388/88814 and gis.stackexchange.com/a/383437/88814 Oct 2, 2021 at 9:36