18 Minutes to Radians

18' ≈ 0.005236 rad

Calculation: rad = 18' × 0.000290888 ≈ 0.005236 rad

Minute to Radian Converter

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Sig. Figures:

How wide is 18'?

18 minute (0.3 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

What does 18' look like?

Illustration of a telescope crosshair reticle
18 minute (0.3 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

How to Convert Minute to Radian

1 minute = 0.000290888 radians

Radian = Minute × 0.000290888

Example: 18' × 0.000290888 = 0.005236 rad

Reverse Conversion

To convert radians back to minutes:

  • Remember, 1 radian equals 3437.75 minutes.
  • To convert 0.005236 rad to', multiply 0.005236 x 3437.75, resulting in 18'.

18 ' is also equal to:

  • 0.3 degree
  • 13 gradian
  • 0.00083333 turn
About these units

Minute: An arcminute (minute of arc) is 1/60 of a degree.It is used in astronomy, optics, navigation, geodesy, and surveying for small angular measurements.

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 minutes in radians?

18 minutes equals 0.005236 radians. This is calculated by multiplying 18 by the conversion factor 0.000290888.

What does 18 minutes look like in radians?

18 minutes (0.005236 radians) is a small angular division; 60 arc minutes make one degree.

How do you calculate 18 minutes to radians?

Multiply 18 by the conversion factor 0.000290888. The calculation is 18 × 0.000290888 = 0.005236 radians. This factor is defined by international measurement standards.

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18 minutes = 0.00523599 radians
18 minutes = 0.00523599 radians — conversion chart

Nearby Conversions

8 minutes0.002327 radians 9 minutes0.002618 radians 10 minutes0.002909 radians 11 minutes0.0032 radians 12 minutes0.003491 radians 13 minutes0.003782 radians 14 minutes0.004072 radians 15 minutes0.004363 radians 16 minutes0.004654 radians 17 minutes0.004945 radians 19 minutes0.005527 radians 20 minutes0.005818 radians 21 minutes0.006109 radians 22 minutes0.0064 radians 23 minutes0.00669 radians 24 minutes0.006981 radians 25 minutes0.007272 radians 26 minutes0.007563 radians 27 minutes0.007854 radians 28 minutes0.008145 radians

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

Also convert Minutes 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.