Map Reference Explained

When you enter a post code, the system locates it in the corresponding map book and displays a reference like SY 115 E7 82.

• SY - South Yorkshire Ordnance Survey street atlas map book (click here to see list of other supported map books).
• 115 - Page Number in the book.
• E7 - Grid Reference on the page.
• 82: - Sub-Grid Reference. Quite often it is difficult to locate a destination within the approximate one inch square grid reference. To help you further, we have split the grid into a further 10 x 10 imaginary squares giving the sub-grid reference of 0 - 9 for each side. So, the 82 refers to 8 tiny squares across and 2 tiny squares up.