# CONVERSION DMS into DD and METER

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In this post I will discuss how to convert Degrees Meter Seconds (DMS) form the Decimal Degrees (DD) and Meter (M).
Earth's distance calculated from the east-west and north-south somewhere from a particular starting point. The distance is measured in degrees of the angle formed from the starting point to that position through the center of the earth. While the starting point is set to be at the intersection of north-south hemisphere of the earth (the equator) with the line that divides the earth east-west through the city Greenwhich in England.
The position of a place described by the value longitude coordinates (longitude) and latitude (latitude) through the place. Longitude (longitude), often also called meridians, which is a straight line that connects the north and south poles of the earth. Longitude coordinate values ​​starting from 0 ° longitude is at Greenwhich, then enlarges to the east and west to meet again at the international date line boundary that is located in the Bering Strait to the value of 180 °. Longitude to the west is negative and is called west longitude (west longitude) often shortened to BB. While longitude eastward rated positively and called the east longitude (east longitude) abbreviated BT. Their coordinates are based on the magnitude of the angle formed by the longitude 0 ° to the longitude line through the center of the earth.
 Earth Koordinat
The starting value of the latitude of the equator circle line which rated 0 °. The next lines of latitude that another form of circles parallel (parallel) equator are north and south of the equator. Circle parallel to the south is called latitude south (LS) and given a negative value, while the circle parallel to the north rated positively and called the northern latitudes (LU). The maximum value of the latitude is 90 ° which is located at the poles of the earth.
Parallel circles that represent these latitudes getting smaller in size with the further from the equator. So the distance is 1 ° east-west at the equator is much greater than at a distance of 1 ° east-west at a distance from the equator. At the equator 1 ° east-west equal to 111 320 km, but near the poles 1 ° east-west just a few meters away. That is why the grid is made of latitude and longitude, it appears in the form of a square at the equator and turned into a rectangle in the areas near the poles.
Around the Earth:
Keep in mind, before starting the calculation of the distance of the earth in units of degrees, it would be better we need to know the length of the circumference of the earth itself in units of kilometers. Known around the world today is 40075.017 Km or 40.007.86 Km from the meridian points of the equator that is described to be 360 °. We round it off to 40 075 Km. so :
1 degree = 40.075 km : 360° = 111,320 Km
1 minute = 111,320 Km : 60 = 1,855 Km
1 second = 1,855 Km : 60 = 30,92 Meter
Angular Unit :
The magnitude of the angle in the geographic units can be expressed in two ways, namely by unit DMS (degree minute second) or unit DD (decimal degree). With the DMS unit system, every degree angle is divided into 60 minutes and each minute divided into 60 seconds. Writing expressed as dd ° mm'ss ". While the DD unit system, each rank is expressed in decimal fraction (split by comma).
CONVERSION decimal degrees (DD) to DEGREES OF MINUTES seconds (DMS)
example:

DD = 104,634327 Longitude

The value of the degree by taking the numbers in front of the comma :

Degree = 104 degree
Value minute by multiplying the numbers behind the comma with 60, and write the numbers in front of the comma, namely:
Minute = 0,634327 x 60 = 38,05962 = 38 minute
Second value by multiplying the decimal point in the calculation of minutes with the number 60 :
Second = 0,05962 x 60 = 3,5772 = 3 Second
So 104,634327 Longitude = 104 degree 38 Minute 3 Seconds Longitude = 104°38' 3" Longitude.
CONVERSION DEGREE OF MINUTES seconds (DMS) to decimal degrees (DD)
You do this by reversing the above formula. example:

DMS = = 100°15' 30" Longitude.

DD = (100) + (15/60) + (30/(60 x 60))
DD = (100) + (0.25) + (30/3600)
DD = 100 + 0,25 + 0,0083333
DD = 100,2583333
The above calculation is used for the Geographic coordinate system, and if we will use the DMS or DD coordinate values in the coordinate system to UTM (Universal Transverse Mercator) then we have to convert it to a unit Meter. On condition that we should already know the length of 1 ° in units of Kilometers / Meters. Since we already know the length of the part count circumference of the Earth, then we can immediately practice :
CONVERSION decimal degrees (DD) to METER
Examples of point A and point B is :

DD = 104,634327 Longitude
KM = 104,634327 x 111,320 Km
KM = 11647,89328164 Km x 1000 = 11647893,28164 Meter
CONVERSION DEGREE OF MINUTES seconds (DMS) to METER
Examples of point A and point B is :

DMS = = 100°15' 30" Longitude

KM = (100 x 111,320) + (15 x 1,855) + ((30 x 30,92)/1000) Km

KM = 11132 + 46,375 + 0,9276 Km
KM = 11179,3026 Km x 1000 = 11179302,6 Meter
Hope it is useful . , ,

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