21.3 Minutes to Degrees

21.3' = 0.355°

Calculation: ° = 21.3' × 0.0166667 = 0.355°

Minute to Degree Converter

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Sig. Figures:

How wide is 21.3'?

21.3 minute (0.355 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

What does 21.3' look like?

Illustration of a telescope crosshair reticle
21.3 minute (0.355 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

How to Convert Minute to Degree

1 minute = 0.0166667 degrees

Degree = Minute × 0.0166667

Example: 21.3' × 0.0166667 = 0.355°

Reverse Conversion

To convert degrees back to minutes:

  • Remember, 1 degree equals 60 minutes.
  • To convert 0.355° to', multiply 0.355 x 60, resulting in 21.3'.

21.3 ' is also equal to:

  • 0.0061959 radian
  • 0.39444 gradian
  • 0.00098611 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.

Degree: The degree (°) is a non-SI unit of plane angle defined as 1/360 of a full rotation.It is accepted for use with the SI due to its long-standing practical importance in navigation, surveying, engineeri...

Frequently Asked Questions

How much is 21.3 minutes in degrees?

21.3 minutes equals 0.355 degrees. This is calculated by multiplying 21.3 by the conversion factor 0.0166667.

What does 21.3 minutes look like in degrees?

21.3 minutes (0.355 degrees) is a small angular division; 60 arc minutes make one degree.

How do you calculate 21.3 minutes to degrees?

Multiply 21.3 by the conversion factor 0.0166667. The calculation is 21.3 × 0.0166667 = 0.355 degrees. This factor is defined by international measurement standards.

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21.3 minutes = 0.355 degrees
21.3 minutes = 0.355 degrees — conversion chart

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For general conversions between minutes and degrees, see the minutes to degrees 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.