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Coordinate Conversions

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How to convert ddmm.mmmm and dddmm.mmmmto D.d or DMS

 

Example: 2500.1472 is in ddmm.mmmm format

 

To convert to D.d

Divide mm.mmmm by 60 to get .d (0.1472/60 = 0.0024)

Add .d to D to get D.d - >25.0024 (Decimal degrees)

 

To convert to DMS

Multiply .mmmm by 60 to get S (0.1472 *60=8)

25 degrees , 0 minutes and 8 Seconds


Latitude Longitude Conversion Equation Examples

Conversion from Degrees, Minutes,
and Seconds to Decimal Degrees

46 degrees, 10 minutes, 28 seconds

Decimal Degrees = Degrees + (Minutes/60) + (Seconds/3600)
Decimal Degrees = 46 + (10/60) + (28/3600)
Decimal Degrees = 46 + (0.1666667) + (0.0077778)
Decimal Degrees = 46.17444
Conversion from Decimal Degrees to Degrees, Minutes,
and Seconds

Decimal Degree = D.ddd 46.17444
Degrees (D) = D.ddd - .ddd 46.17444 - 0.17444 = 46
Decimal Minutes (M.mmm) = .ddd * 60 0.17444 * 60 = 10.4664
Minutes (M) = M.mmm - .mmm 10.4664 - 0.4664 = 10
Seconds (S) = .mmm * 60 0.4664 * 60 = 27.984
D/M/S = D and M and S 46 Degrees, 10 Minutes, 27.984 Seconds


Ref. Sites:
http://www.directionsmag.com/latlong.php
http://maps2.nris.state.mt.us/topofinder1/LatLong.asp

http://www.wcrl.ars.usda.gov/cec/java/lat-long.htm

Created by zopeuser
Last modified 2007-11-19 15:42
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