minute of arc

1/60 degree.

Quick convert — minute of arc to popular units

Live converter, three directions. Type any value to update all three.

minute of arc
degree
1 ′ = 0.0167°
minute of arc
radian
1 ′ = 0.0003rad
minute of arc
gradian
1 ′ = 0.0185gon

Conversion table — minute of arc to every Angle unit

All values for 1 ′ (forward) and 1 reverse unit → {symbol}.

To / From 1 ′ = 1 to-unit =
degree (°) 0.01666667 ° 60
radian (rad) 0.00029089 rad 3,437.74677078
gradian (gon) 0.01851852 gon 54
second of arc (″) 60 0.01666667
turn (tr) 4.629630e-5 tr 21,600

Frequently Asked Questions

What does ′ stand for?

minute of arc (′) is a unit of Angle.

How many ′ are in 1 rad?

1 rad = 0.000291 ′, so 1 ′ = 3,437.746771 rad.

Is this the SI base unit?

No. minute of arc is one of several units in the Angle category. The SI base is rad.

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