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Thread: UTM conversion to Degree Min Sec ?????

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  1. #1
    Junior Member
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    Exclamation UTM conversion to Degree Min Sec ?????

    I recently bought a piece of land in Borneo or Sabah Malaysia. I have a copy of a surveyor map which i'm having hard time understanding since i have no background in this field. I intend to plot the boundary of this land onto google earth but i face difficulties in converting the coordinate of the surveyor map to google earth coordinate (degree min sec). After doing some online readings i learned that the surveyer map is in UTM coordinate. So i use the online UTM converter to convert the coordinate to Degree Min Sec. However the conversion result is incorrect as it does not match the location on the google earth. Anyone can help me with the conversion please. THIS IS VERY COMPLICATED !!

    the vertical grid is E800000m - E800500m - E801000m
    the horizontal grid is N600000m - N600500m - N601000m


    i'm using this converter :-
    http://www.rcn.montana.edu/resources...ordinates.aspx

  2. #2
    Senior Member martin's Avatar
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    Wouldn't it be easier to switch Google Earth to show UTM coords?
    (Tools -> Options)

  3. #3
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    Default :happynope

    I tried changing google earth to show UTM coordinate but it is still not correct. Wrong location shown. I think it must be different type of UTM. That's why i try to convert my surveyor map UTM coordinate to Deg Min Sec.

    I think what i need now is this type of conversion as shown on this website :-

    http://posc.org/Epicentre.2_2/DataMo.../eu_cs34i.html

    but i cant understand at all. No online conversion of this type found. Sigh.

  4. #4
    Super Moderator Captain Hornblower's Avatar
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    I am not that familiar with UTM but somehow I miss the zone(s) in your coordinates...

    Software is like entropy. It is difficult to grasp, weighs nothing, and obeys the second law of thermodynamics; i.e., it always increases.
    Norman R. Augustine

  5. #5

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    You may not have enough information to locate your map based on the coordinates alone. In addition to the Projection (UTM, etc.), there is also the Datum and other factors like False Easting and False Northing that may need to be adjusted for. What you really need is another map of the island that is already georeferenced correctly. Then you can manually overlay your map onto that one and transfer it to Google Earth.

    Matt
    Matt Fox

  6. #6
    Senior Member tpstigers's Avatar
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    The problem here is that you're dealing with UTM (Universal Transverse Mercator), which is a grid. The UTM grid divides the planet up into a bunch of rectilinear slices, each of which has its own designation (or zone). UTM co-ordinates without a zone are useless.

    It seems as though you need to find out which UTM grid your land is in. This should help.
    I have an existential map; it has 'you are here' written all over it.

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