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Some basis calculation to convert DMS and DD

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09-21-2022 08:20 AM
SamriddhiSrivastava
Emerging Contributor

Hello.... Just wanted to share the basic calculation method for converting DMS to DD and vice versa

Sexagesimal (base 60) system
Degrees, Minutes, Seconds (DMS) e.g. 142° 32’ 23”
1 degree = 60 minutes
1 minute = 60 seconds.


Converting DMS 150° 11’ 29” to DD coordinates 
= 150 + (11/60) + (29/3600)
= 150.1914

Explanation - 150° 11’ 29”
= D + (M/60) + (S/3600)
= 150 + (11/60) + (29/3600)
= 150 + 0.1834+ 0.008

= 150.1914


Converting Decimal degrees to Degrees, minutes, seconds

150.1914
.1914x60 = 11.484
.484x60 = 29

150° 11’ 29”

Hope this will help to understand the logic behind the conversion.

 

Thanks
Samriddhi

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