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How To: Calculate Decimal Degrees from Degrees Minutes Seconds (DMS) manually

Summary

Instructions provided describe how to calculate Decimal Degrees from Degrees Minutes Seconds (DMS) manually.

Procedure

Decimal Degrees =
Degrees + ((Minutes / 60) + (Seconds / 3600))

Example:

DMS: 75 59 32.483 W

Decimal degrees: -75.9923564

Note:
Degrees Minutes Seconds is often followed by the hemisphere labels of N, S, E, or W. When converting to decimal degrees, convert longitude values that are in the western hemisphere or latitude values that are in the southern hemisphere to negative decimal degree values.