30 Arc Seconds to Degrees

30" ≈ 0.0083333°

Calculation: ° = 30" × 0.000277778 ≈ 0.0083333°

Arc Second to Degree Converter

Choose the type of measurement to convert
Select the source unit to convert from
Select the target unit to convert to
Enter a numeric value or fraction to convert
Sig. Figures:

How wide is 30"?

30 arc second (0.008 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

What does 30" look like?

Illustration of a telescope crosshair reticle
30 arc second (0.008 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

How to Convert Arc Second to Degree

1 arc second = 0.000277778 degrees

Degree = Arc Second × 0.000277778

Example: 30" × 0.000277778 = 0.0083333°

Reverse Conversion

To convert degrees back to arc seconds:

  • Remember, 1 degree equals 3600 arc seconds.
  • To convert 0.0083333° to", multiply 0.0083333 x 3600, resulting in 30".

30 " is also equal to:

  • 0.00014544 radian
  • 0.0092593 gradian

Frequently Asked Questions

How much is 30 arc seconds in degrees?

30 arc seconds equals 0.0083333 degrees. This is calculated by multiplying 30 by the conversion factor 0.000277778.

What does 30 arc seconds look like in degrees?

30 arc seconds equals 0.0083333 degrees, a conversion used in navigation, trigonometry, and engineering design.

How do you calculate 30 arc seconds to degrees?

Multiply 30 by the conversion factor 0.000277778. The calculation is 30 × 0.000277778 = 0.0083333 degrees. This factor is defined by international measurement standards.

Share This Calculation

30 arc seconds = 0.00833333 degrees
30 arc seconds = 0.00833333 degrees — conversion chart

Nearby Conversions

20 arc seconds0.005556 degrees 21 arc seconds0.005833 degrees 22 arc seconds0.006111 degrees 23 arc seconds0.006389 degrees 24 arc seconds0.006667 degrees 25 arc seconds0.006944 degrees 26 arc seconds0.007222 degrees 27 arc seconds0.0075 degrees 28 arc seconds0.007778 degrees 29 arc seconds0.008056 degrees 31 arc seconds0.008611 degrees 32 arc seconds0.008889 degrees 33 arc seconds0.009167 degrees 34 arc seconds0.009444 degrees 35 arc seconds0.009722 degrees 36 arc seconds0.01 degrees 37 arc seconds0.01028 degrees 38 arc seconds0.01056 degrees 39 arc seconds0.01083 degrees 40 arc seconds0.01111 degrees

For general conversions between arc seconds and degrees, see the arc seconds to degrees converter.

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.