February 10, 2010 08:14
If you decide to use Excel, this formula will convert Latitudes (ddº mm.mmm' N) in cell A1 to decimal format (±nn.nnnnn)
=(LEFT(A1,2)*1+MID(A1,5,6)/60)*IF(RIGHT(A1,1) = "N",1,-1)
and for Longitudes (dddº mm.mmm' W) in cell A2:
=(LEFT(A2,3)*1+MID(A2,6,6)/60)*IF(RIGHT(A2,1) = "E",1,-1)
=(LEFT(A1,2)*1+MID(A1,5,6)/60)*IF(RIGHT(A1,1) = "N",1,-1)
and for Longitudes (dddº mm.mmm' W) in cell A2:
=(LEFT(A2,3)*1+MID(A2,6,6)/60)*IF(RIGHT(A2,1) = "E",1,-1)
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Jon Longworth
Jon Longworth