1° | 17.45 mrad (milliradians) | π/180 radians | 1.111 grads (unit officially deprecated) | 0.01111 quad (quadrants)

1 mrad | 0.0573° 1 rad | 57.3° 1 grad | 0.9° 1 quad | 90°

plane angle

bearing

non-SI but accepted for use with SI | recognized for use in astronomy

[angle]

Arc length s along the Earth's equator from s = Rθ: | 60.11 nmi (nautical miles) | 69.17 miles | 111.3 km (kilometers) | 111319 meters

Arc length s around the Earth at 45° latitude from s = Rcos(45°)θ: | 42.5 nmi (nautical miles) | 48.91 miles | 78.71 km (kilometers) | 78715 meters

Rotation count N from N = φ/(2π): | 0.0028 rot (rotations)

Slope percentage from [slope percentage] = 100% × tan(θ): | 1.746 slope% (slope percent)

Electric loss factor d from δ = tan^(-1)(d): | 0.01746

Quality factor Q from δd = tan^(-1)(1/Q): | 57.29

≈ 0.25 × angle at which the Leaning Tower of Pisa leans ( ≈ 3.99° )

≈ angular width of the little finger held at arm's length ( ≈ 1° )

≈ 1.9 × angular diameter of the sun viewed from Earth ( 31.45 to 32.53' )

≈ 60 × angular resolving power of the human eye ( ≈ 1' )