Convert radians to arcseconds
rad
1 radian ≈
206264.806 arcseconds
* rounded result
Select how many decimal places the result will be rounded to:
How to convert radians to arcseconds
To convert radians to arcseconds, multiply a radians value by 648000/π.
Formula ″ = rad × 648000/π
Example: Convert 2 radians to arcseconds Calculations: 2 rad × 648000/π ≈ 412529.612 ″
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.
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.