Do you want to convert the location of a place to a different format, such as Post Code to Grid Reference

If so then go to http://www.streetmap.co.uk

• Find the location you want (by name of place, grid reference, post code or whatever).
• When you have found a map of the location make sure the arrow points to the correct location. If not click on the required spot and the map will be centred there.
• Underneath the map you should see some text like 
  
  "Use http://www.streetmap.co.uk/streetmap.dll?G2M?X=435015&Y=339327&A=Y&Z=1 to link to this map.
  Location is at 435015E 339327N (N52:57:01 W1:28:49) Click here to convert/measure coordinates"
  If you click on "here"
  
• Click on the word here in the line like that above and you will get a page that has a table like the one below
  Select the location in the format you want from this table
  
  

OS X	435015
OS Y	339327
Nearest Post Code	DE22 2UZ
Lat (WGS84)	N52:57:01 ( 52.950188 )
Long (WGS84)	W1:28:49 ( -1.480308 )
LR	SK350393
mX	-164787
mY	6939663
M	Actual : FFFD7C4D_0069E40F Street : FFFD7D6C_0069E36C Road : FFFD8F00_0069BE50 Road64 : FFFE0C00_00697800 Road128: FFFE0C00_00697800