Degrees to Seconds Of Arc Conversion

Enter the angle in degrees below to get the value converted to seconds of arc.

Results in Seconds Of Arc:
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1° = 3,600 arcsec

How to Convert Degrees to Seconds Of Arc

To convert a degree measurement to a second of arc measurement, multiply the angle by the conversion ratio.

Since one degree is equal to 3,600 seconds of arc, you can use this simple formula to convert:

seconds of arc = degrees × 3,600

The angle in seconds of arc is equal to the degrees multiplied by 3,600.

For example, here's how to convert 5 degrees to seconds of arc using the formula above.
5° = (5 × 3,600) = 18,000"
conversion scale showing degrees and equivalent seconds of arc angle values

How Many Seconds Of Arc Are in a Degree?

There are 3,600 seconds of arc in a degree, which is why we use this value in the formula above.

1° = 3,600"

Degrees and seconds of arc are both units used to measure angle. Keep reading to learn more about each unit of measure.


A degree is a measure of angle equal to 1/360th of a revolution, or circle.[1] The number 360 has 24 divisors, making it a fairly easy number to work with. There are also 360 days in the Persian calendar year, and many theorize that early astronomers used 1 degree per day.

The degree is an SI accepted unit for angle for use with the metric system. A degree is sometimes also referred to as a degree of arc, arc degree, or arcdegree. Degrees can be abbreviated as °, and are also sometimes abbreviated as deg. For example, 1 degree can be written as 1° or 1 deg.

Degrees can also be expressed using minutes and seconds as an alternative to using the decimal form. Minutes and seconds are expressed using the prime (′) and double-prime (″) characters, although a single-quote and double-quote are often used for convenience.

One minute is equal to 1/60th of a degree, and one second is equal to 1/60th of a minute.

Protractors are commonly used to measure angles in degrees. They are semi-circle or full-circle devices with degree markings allowing a user to measure an angle in degrees. Learn more about how to use a protractor or download a printable protractor.

Seconds Of Arc

The second of arc is a unit of angle equal to 1/60th of one minute of arc or 1/3,600 of one degree.

A second of arc is sometimes also referred to as an arc second or arcsecond. Seconds of arc can be abbreviated as arcsec, and are also sometimes abbreviated as asec. For example, 1 second of arc can be written as 1 arcsec or 1 asec.

The second of arc is most commonly expressed using a double prime (″), though a double quote is often used as well. For example, 1 second of arc is most often written as 1″.

Degree to Second Of Arc Conversion Table

Degree measurements converted to seconds of arc
Degrees Seconds Of Arc
0.001° 3.6"
0.002° 7.2"
0.003° 10.8"
0.004° 14.4"
0.005° 18"
0.006° 21.6"
0.007° 25.2"
0.008° 28.8"
0.009° 32.4"
0.01° 36"
0.02° 72"
0.03° 108"
0.04° 144"
0.05° 180"
0.06° 216"
0.07° 252"
0.08° 288"
0.09° 324"
0.1° 360"
0.2° 720"
0.3° 1,080"
0.4° 1,440"
0.5° 1,800"
0.6° 2,160"
0.7° 2,520"
0.8° 2,880"
0.9° 3,240"


  1. Collins Dictionary, Definition of 'degree',

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