18 Mils to Radians

18 mil ≈ 0.017671 rad

Calculation: rad = 18 mil × 0.000981748 ≈ 0.017671 rad

Mil to Radian Converter

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Sig. Figures:

How wide is 18 mil?

18 mil (1 degrees) is comparable to the angle a clock minute hand sweeps in a few seconds to one minute.

What does 18 mil look like?

Illustration of a clock minute hand movement
18 mil (1 degrees) is comparable to the angle a clock minute hand sweeps in a few seconds to one minute.

Did you know? Thumb width at arm's length is 1°.

Your thumb held at arm's length covers about 1-2° of sky. Astronomers use this as a quick reference.

How to Convert Mil to Radian

1 mil = 0.000981748 radians

Radian = Mil × 0.000981748

Example: 18 mil × 0.000981748 = 0.017671 rad

Reverse Conversion

To convert radians back to mils:

  • Remember, 1 radian equals 1018.59 mils.
  • To convert 0.017671 rad to mil, multiply 0.017671 x 1018.59, resulting in 18 mil.

18 mil is also equal to:

  • 1.0125 degree
  • 1 18 gradian
  • 0.0028125 turn
About these units

Mil: The mil is a military angular unit used in ballistics, optics, and range estimation.In the NATO system, a full circle is divided into 6400 mils.

Radian: The radian (rad) is the SI derived unit of plane angle. It is defined as the angle subtended at the center of a circle by an arc equal in length to the radius.Although mathematically dimensionless, th...

Frequently Asked Questions

How much is 18 mils in radians?

18 mils equals 0.017671 radians. This is calculated by multiplying 18 by the conversion factor 0.000981748.

What does 18 mils look like in radians?

18 mils equals 0.017671 radians, a conversion used in navigation, trigonometry, and engineering design.

How do you calculate 18 mils to radians?

Multiply 18 by the conversion factor 0.000981748. The calculation is 18 × 0.000981748 = 0.017671 radians. This factor is defined by international measurement standards.

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18 mils = 0.0176715 radians
18 mils = 0.0176715 radians — conversion chart

Nearby Conversions

8 mils0.007854 radians 28 mils0.02749 radians 38 mils0.03731 radians 48 mils0.04712 radians 58 mils0.05694 radians 68 mils0.06676 radians 78 mils0.07658 radians 88 mils0.08639 radians 98 mils0.09621 radians 108 mils0.106 radians 118 mils0.1158 radians

For general conversions between mils and radians, see the mils to radians converter.

Also convert Mils to:

Conversion factors verified against BIPM, ISO 80000-3 1 turn = 2π rad = 360° (exact, ISO 80000-3). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.