Convert Circles to Seconds Of Arc

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

SWAP UNITS
Results in Seconds Of Arc:
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1 cir = 1,296,000 arcsec

How to Convert Circles to Seconds Of Arc

Protractors are often used to measure angle

To convert a circle measurement to a second of arc measurement, multiply the angle by the conversion ratio. One circle is equal to 1,296,000 seconds of arc, so use this simple formula to convert:

seconds of arc = circles × 1,296,000

The angle in seconds of arc is equal to the circles multiplied by 1,296,000.

For example, here's how to convert 5 circles to seconds of arc using the formula above.
5 cir = (5 × 1,296,000) = 6,480,000"

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

Circles

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.

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″.

Circle Measurements and Equivalent Second Of Arc Conversions

Common circle values converted to the equivalent second of arc value
Circles Seconds Of Arc
1 cir 1,296,000"
2 cir 2,592,000"
3 cir 3,888,000"
4 cir 5,184,000"
5 cir 6,480,000"
6 cir 7,776,000"
7 cir 9,072,000"
8 cir 10,368,000"
9 cir 11,664,000"
10 cir 12,960,000"
11 cir 14,256,000"
12 cir 15,552,000"
13 cir 16,848,000"
14 cir 18,144,000"
15 cir 19,440,000"
16 cir 20,736,000"
17 cir 22,032,000"
18 cir 23,328,000"
19 cir 24,624,000"
20 cir 25,920,000"
21 cir 27,216,000"
22 cir 28,512,000"
23 cir 29,808,000"
24 cir 31,104,000"
25 cir 32,400,000"
26 cir 33,696,000"
27 cir 34,992,000"
28 cir 36,288,000"
29 cir 37,584,000"
30 cir 38,880,000"
31 cir 40,176,000"
32 cir 41,472,000"
33 cir 42,768,000"
34 cir 44,064,000"
35 cir 45,360,000"
36 cir 46,656,000"
37 cir 47,952,000"
38 cir 49,248,000"
39 cir 50,544,000"
40 cir 51,840,000"

More Circle Angle Conversions

Convert to Radians
1 cir is equal to 6.283185 radians
Convert to Milliradians
1 cir is equal to 6,283.19 milliradians
Convert to Degrees
1 cir is equal to 360 degrees
Convert to Minutes Of Arc
1 cir is equal to 21,600 minutes of arc
Convert to Gradians
1 cir is equal to 400 gradians
Convert to Revolutions
1 cir is equal to 1 revolutions
Convert to Mils (NATO)
1 cir is equal to 6,400 mils (NATO)