second of arc ″
1/3600 degree. Astronomy.
Quick convert — second of arc to popular units
Live converter, three directions. Type any value to update all three.
second of arc
degree
1 ″ = 0.0003°
second of arc
radian
1 ″ = 4.85e-6rad
second of arc
gradian
1 ″ = 0.0003gon
Conversion table — second of arc to every Angle unit
All values for 1 ″ (forward) and 1 reverse unit → {symbol}.
| To / From | 1 ″ = | 1 to-unit = |
|---|---|---|
| degree (°) | 0.00027778 ° | 3,600 ″ |
| radian (rad) | 4.848137e-6 rad | 206,264.8062471 ″ |
| gradian (gon) | 0.00030864 gon | 3,240 ″ |
| minute of arc (′) | 0.01666667 ′ | 60 ″ |
| turn (tr) | 7.716049e-7 tr | 1,296,000 ″ |
Frequently Asked Questions
What does ″ stand for?
second of arc (″) is a unit of Angle.
How many ″ are in 1 rad?
1 rad = 4.8481e-6 ″, so 1 ″ = 206,264.806247 rad.
Is this the SI base unit?
No. second of arc is one of several units in the Angle category. The SI base is rad.
Common conversions from second of arc
#1
second of arc (″) → degree (°)
Convert second of arc (″) to degree.
#2second of arc (″) → radian (rad)
Convert second of arc (″) to radian.
#3second of arc (″) → gradian (gon)
Convert second of arc (″) to gradian.
#4second of arc (″) → minute of arc (′)
Convert second of arc (″) to minute of arc.
#5second of arc (″) → turn (tr)
Convert second of arc (″) to turn.