Free calculators and unit converters for general and everyday use.
Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert geographic coordinates specified in degree-minute-second (DMS) to decimal degrees and vice-versa.
Android: Use this coordinate converter offline with our all-in-one calculator app.
Longitude/ latitude values may be either expressed as a decimal fration or with a sexagesimal notation where each degree is divided into 60 minutes, each of which is further sub-divided into 60 seconds.
DMS to decimal
dd = deg + min/60 + sec/3600
Decimal to DMS
deg = ⌊dd⌋
min = ⌊(dd - deg) * 60⌋
sec = ((dd - deg) * 60 - min) * 60
dd = coordinate in decimal degree
deg = degrees
min = minutes
sec = seconds