Here it is:
http://www.mediafire.com/file/wff9pj...alculator.xlsx
This simple Excel spreadsheet does what the title says: you enter the world coordinates in degrees/minutes/seconds, and it returns the equivalent coordinates in decimal degrees and as in metric format, as used by the SH map projection. It should work for all the Silent Hunter games starting form SHIII
A note on SHIII: Decimal coordinates used for terrain object placement, have a precision of six decimals. In the cylindrical SH world this corresponds to a degree of accuracy of ±12 cm. For our purposes, this is more than enough. In theory, units' placement can be even more precise, but I have decided to round the results of my formulas so to ensure an exact match among the two notations.
The preset coordinates that the spreadsheer is coming with, are relative to the Tourelle de la Plate (measured in Google Earth).
@ Kendras
When you are back from your break, let me know if this tool solves your problems please
