Convert arcseconds to radians
″
1 arcsecond ≈
0.00000485 radians
* rounded result
Select how many decimal places the result will be rounded to:
How to convert arcseconds to radians
To convert arcseconds to radians, multiply a arcseconds value by π/648000.
Formula rad = ″ × π/648000
Example: Convert 324000 arcseconds to radians Calculations: 324000 ″ × π/648000 ≈ 1.571 rad
Arcsecond (″)
The arcsecond is a unit of angle, defined as 1/3600 of a degree. One arcsecond is equal to π/648000 radians, or 1/60 of an arcminute.
Radian (rad)
The radian is a unit of angle, defined as the angle subtended at the center of a circle by an arc whose length is equal to the radius of the circle. It is equal to 180/π degrees, or 648000/π arcseconds.