Convert Arcminute to Milliradian

One ′ equals 0.2908882087 mrad. This converter allows you to easily convert between Arcminute and Milliradian in real time.

Formula

′ × 0.2908882087 = mrad

Example: 1 ′ = 0.2908882087 mrad

What is Arcminute?

The arcminute is one-sixtieth of a degree, symbolized by a prime mark. In astronomy, the apparent diameter of the full Moon is about 31 arcminutes. The definition of 20/20 vision (visual acuity 1.0) is based on the ability to resolve details of one arcminute. Geographic coordinates are often expressed in degrees, minutes, and seconds, where one arcminute of latitude corresponds to approximately 1.852 km (one nautical mile) on Earth's surface.

What is Milliradian?

The milliradian is one-thousandth of a radian, approximately 0.0573 degrees. It is widely used in military and shooting applications, where NATO standard scopes use milliradians for angular measurement. One mrad subtends approximately one meter at a distance of 1,000 meters, making range estimation intuitive. Laser beam divergence and optical aberrations are also often specified in milliradians.