Angle Unit Converter

Convert between angle units

Units

Degrees (°)

Arc Minutes (')

Milliradians (mrad)

Quick reference

1 degree = 60 arc minutes
1 degree = 17.453 milliradians
1 arc minute = 0.291 milliradians

Three units for angles

Degrees for everyday angles; arc minutes and milliradians for small ones, as in optics, astronomy and on rifle scopes. An arc minute, or minute of angle (MOA), is a sixtieth of a degree. A milliradian is a thousandth of a radian.

1° = 60′ = 17.453 mrad · 1 mrad = 0.0573° = 3.438′

Rule of thumb

1 mrad is 1 m at a distance of 1 km, or 1 cm at 10 m. An arc minute is about 29 cm at 1 km.