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There is a facility, mainly used by Wikipedia, 

{| border=1 cellspacing=0 cellpadding=3
|-
|| 0 || 100 km || 400 km || 700 km || &larr; eastings
|-
|| {{smf|100|1299900|0,1300}} || {{smf|100000|1299900|100,1300}} || {{smf|400000|1299900|400,1300}} || {{smf|699900|1299900|700,1300}} || 1300 km north
|-
|| {{smf|100|800000|0,800}} || {{smf|100000|800000|100,800}} || {{smf|400000|800000|400,800}} || {{smf|699900|800000|700,800}} || 800 km north
|-
|| {{smf|100|400000|0,400}} || {{smf|100000|400000|100,400}} || {{smf|400000|400000|400,400}} || {{smf|699900|400000|700,400}} || 400 km north
|-
|| {{smf|100|100|0,0}} || {{smf|100000|100|100,0}} || {{smf|400000|100|400,0}} || {{smf|699900|100|700,0}} || 0 north
|}