42 Arc Seconds to Degrees

42" ≈ 0.011667°

Calculation: ° = 42" × 0.000277778 ≈ 0.011667°

Arc Second to Degree Converter

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Sig. Figures:

How wide is 42"?

42 arc second (0.012 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

What does 42" look like?

Illustration of a telescope crosshair reticle
42 arc second (0.012 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: 42" × 0.000277778 = 0.011667°

Reverse Conversion

To convert degrees back to arc seconds:

  • Remember, 1 degree equals 3600 arc seconds.
  • To convert 0.011667° to", multiply 0.011667 x 3600, resulting in 42".

42 " is also equal to:

  • 0.00020362 radian
  • 0.012963 gradian

Frequently Asked Questions

How much is 42 arc seconds in degrees?

42 arc seconds equals 0.011667 degrees. This is calculated by multiplying 42 by the conversion factor 0.000277778.

What does 42 arc seconds look like in degrees?

42 arc seconds equals 0.011667 degrees, a conversion used in navigation, trigonometry, and engineering design.

How do you calculate 42 arc seconds to degrees?

Multiply 42 by the conversion factor 0.000277778. The calculation is 42 × 0.000277778 = 0.011667 degrees. This factor is defined by international measurement standards.

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42 arc seconds = 0.0116667 degrees
42 arc seconds = 0.0116667 degrees — conversion chart

Nearby Conversions

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 41 arc seconds0.01139 degrees 43 arc seconds0.01194 degrees 44 arc seconds0.01222 degrees 45 arc seconds0.0125 degrees 46 arc seconds0.01278 degrees 47 arc seconds0.01306 degrees 48 arc seconds0.01333 degrees 49 arc seconds0.01361 degrees 50 arc seconds0.01389 degrees 51 arc seconds0.01417 degrees 52 arc seconds0.01444 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.