Degrees to Seconds Converter
This converter turns an angle expressed in degrees into arcseconds and into seconds of time, the two units astronomers, surveyors and GPS users rely on for precise angular measurement. Choose your input format, decimal degrees or degrees, minutes and seconds (DMS), then enter your angle. Behind the scenes the tool applies the standard sexagesimal relationships: one degree equals 60 arcminutes and 3,600 arcseconds, and because Earth rotates 360 degrees in 24 hours, one degree also equals 240 seconds of time. Your results update instantly in four headline tiles: Decimal Degrees, Arcseconds, Arcminutes and Seconds of Time. Below that, a full breakdown shows your angle as decimal degrees, as a degrees minutes seconds value, as total arcminutes and total arcseconds, and its time equivalent in seconds, minutes, hours and an hours minutes seconds format. Use this when you need to convert a survey bearing or GPS coordinate into arcseconds for precision work, or when relating a celestial longitude in degrees to a time based coordinate such as right ascension. Arcseconds measure angle, while seconds of time measure duration, so keep the two separate even though both share the word seconds. Enter an angle beyond 360 degrees or below zero and the calculator still converts it correctly, but it does not normalise the value to a standard 0 to 360 degree range, so check your input if you need a normalised bearing.
1. Enter Your Angle
2. About This Conversion
Arcseconds measure angle: 1 degree = 60 arcminutes = 3,600 arcseconds. This is the unit used for star positions, survey bearings and coordinate precision.
Seconds of time relate angle to Earth's rotation: since Earth turns 360 degrees in 24 hours, 1 degree = 240 seconds of time. This is used for longitude and solar time calculations.