It is a conversion calculator that is used to convert the degrees, minutes and seconds to decimal degrees. It has three text fields where you need to enter the values of degrees, minutes and seconds respectively. It has also been programmed with three control buttons that accomplish various tasks of the converter. The results in decimal degrees will be displayed at the bottom panel of the calculator below the controls. The ‘Convert' button is used to initiate the conversions while the ‘Reset' button is used to readjust the calculator. It is mostly used when you want to perform new calculations.

**For example;**

Convert 45° 25' 55" into decimal degrees

**Solution **

First, enter the values 45, 25 and 55 in the degrees, minutes and seconds text field respectively. Click the ‘Convert' button to initiate the conversion. The results will be displayed as;

Decimal degrees: 45° 25' 55"

= 45° + 25'/60 + 55"/3600

= 45.43194°

This converter also shows the angle view of the conversion to decimal degrees. You can always repeat the same procedure when you have new calculations. The ‘Swap' button will be useful when you want to convert the decimal degrees to degrees, minutes and seconds. It alternates the alignment used by the calculator to perform the calculations.

**Formula of converting degrees, minutes and seconds to decimal degrees**

1° 60' 3600", which means that one degree is equivalent to sixty minutes which is equal to three thousand six hundred seconds.

1' = (1 / 60) ° = 0.01666667° where one minute is equivalent to one divided by sixty degrees.

1" = (1 / 3600) ° = 2.77778e-4° = 0.000277778°. This means that one second is equal to one divided by three thousand six hundred degrees.

D° M'S", for an angle of integer degrees, minutes and seconds, the decimal degrees is equivalent to;

Dd = d + m/60 + s /3600.

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