Seconds of Arc to Circles Converter
Enter the angle in seconds of arc below to convert it to circles.
Result in Circles:
Do you want to convert circles to seconds of arc?
On this page:
Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.
How to Convert Seconds of Arc to Circles
To convert a measurement in seconds of arc to a measurement in circles, divide the angle by the following conversion ratio: 1,296,000 seconds of arc/circle.
Since one circle is equal to 1,296,000 seconds of arc, you can use this simple formula to convert:
circles = seconds of arc ÷ 1,296,000
The angle in circles is equal to the angle in seconds of arc divided by 1,296,000.
For example, here's how to convert 5,000,000 seconds of arc to circles using the formula above.
circles = (5,000,000" ÷ 1,296,000) = 3.858025 cir
Seconds of arc and circles are both units used to measure angle. Keep reading to learn more about each unit of measure.
What Is a Second 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″.
Learn more about seconds of arc.
What Is a Circle?
A circle is the equivalent of 1 revolution around a circle, or 360°.
A circle is sometimes also referred to as a revolution. Circles can be abbreviated as cir; for example, 1 circle can be written as 1 cir.
A circle is more commonly used to describe a round, symmetrical shape with no corners or edges than it is to describe plane angle. The shape is described by its radius and circumference.
Learn more about circles.
Second of Arc to Circle Conversion Table
| Seconds Of Arc | Circles |
|---|---|
| 1" | 0.0000007716 cir |
| 2" | 0.0000015432 cir |
| 3" | 0.0000023148 cir |
| 4" | 0.0000030864 cir |
| 5" | 0.000003858 cir |
| 6" | 0.0000046296 cir |
| 7" | 0.0000054012 cir |
| 8" | 0.0000061728 cir |
| 9" | 0.0000069444 cir |
| 10" | 0.000007716 cir |
| 100" | 0.00007716 cir |
| 1,000" | 0.000772 cir |
| 10,000" | 0.007716 cir |
| 100,000" | 0.07716 cir |
| 1,000,000" | 0.771605 cir |
| 10,000,000" | 7.716 cir |