0.001 Radians to Milliradians

0.001 rad = 1 mrad

Calculation: mrad = 0.001 rad × 1000 = 1 mrad

Radian to Milliradian Converter

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Sig. Figures:

How wide is 0.001 rad?

0.001 radian (0.057 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

What does 0.001 rad look like?

Illustration of a telescope crosshair reticle
0.001 radian (0.057 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

How to Convert Radian to Milliradian

1 radian = 1000 milliradians

Milliradian = Radian × 1000

Example: 0.001 rad × 1000 = 1 mrad

Reverse Conversion

To convert milliradians back to radians:

  • Remember, 1 milliradian equals 0.001 radians.
  • To convert 1 mrad to rad, multiply 1 x 0.001, resulting in 0.001 rad.

0.001 rad is also equal to:

  • 0.057296 degree
  • 0.063662 gradian
  • 0.00015915 turn
About these units

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...

Milliradian: The milliradian (mrad) is one thousandth of a radian.It is widely used in ballistics, laser alignment, optical engineering, and instrumentation.

Frequently Asked Questions

How much is 0.001 radians in milliradians?

0.001 radians equals 1 milliradian. This is calculated by multiplying 0.001 by the conversion factor 1000.

What does 0.001 radians look like in milliradians?

0.001 radians (1 milliradian) is a very small angle, less than 6 degrees — common in small-angle approximations in physics.

How do you calculate 0.001 radians to milliradians?

Multiply 0.001 by the conversion factor 1000. The calculation is 0.001 × 1000 = 1 milliradian. This factor is defined by international measurement standards.

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0.001 radians = 1 milliradian
0.001 radians = 1 milliradian — conversion chart

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

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