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British national mesh Shapefile - convert to WGS84 Lat / Lon

I have a set of ESRI shapefiles that I was told were written using the British National Grid coordinate system. I need to convert these files to WGS84 lat / lons, for later conversion to KML files. I am having trouble with this:

If I open each of the source files in MapInfo Professional, saying that my file has a projection, which is a British national grid, then I do not see any geographic features in the file; the map window is completely empty.

If I use MapInfo Professional Universal Translator to convert files to a WGS84 MapInfo database file, then, as before, the converted file will not display any geographical features, the MapInfo window is empty.

Is it possible to check the coordinate system of these files? Did I miss something? Should I convert shapefiles in the way I expect them to be viewable and viewable using MapInfo Professional? Will another tool work better for me?

Thanks.

Additional Information:

My shapefile has coordinates that don't seem to translate to lat / lon correctly, and now I'm wondering if the coordinates are actually a British national grid. I see coordinates such as 383702523, 399081141, which seems to be approximately equal to 53.488182, -2.247153. Do you know which projection system my input file is in?

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2 answers

http://gothos.info/2009/04/14/transform-projections-with-gdal-ogr/

ogr2ogr - .

ogr2ogr -t_srs EPSG:4326 map_wgs84.shp map_original.shp

-t_srs - . 4326 EPSG SRID WGS84.

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Source: https://habr.com/ru/post/1719679/

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