OSGBConverter can be used to convert British National Grid references to latitude and longitude in decimal degrees (WGS84 datum). The converted values can be output as a TomTom Navigator overlay file or a comma separated value (CSV) text file.

The program uses a spreadsheet style grid for data entry. Enter the National Grid reference in column 1 and annotate the entry by entering text in column 2. When the cursor is moved from the cell in column 1 the program will display the latitude and longitude values in columns 3 and 4.

The Open button can be used to load previously saved OSGBConverter formatted overlay files into the grid and the Append button can be used to merge OSGBConverter overlay files.

OSGBConverter.zip Version 1.00, Size 821KB
Contents: OSGBConverter_setup100.exe, readme.txt