58 Arc Seconds to Radians

58" ≈ 0.00028119 rad

Calculation: rad = 58" × 4.84814 × 10⁻⁶ ≈ 0.00028119 rad

Arc Second to Radian Converter

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Sig. Figures:

How wide is 58"?

58 arc second (0.016 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

What does 58" look like?

Illustration of a telescope crosshair reticle
58 arc second (0.016 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

How to Convert Arc Second to Radian

1 arc second = 4.84814 × 10-6 radians

Radian = Arc Second × 4.84814 × 10-6

Example: 58" × 4.84814 × 10-6 = 0.00028119 rad

Reverse Conversion

To convert radians back to arc seconds:

  • Remember, 1 radian equals 206265 arc seconds.
  • To convert 0.00028119 rad to", multiply 0.00028119 x 206265, resulting in 58".

58 " is also equal to:

  • 0.016111 degree
  • 0.017901 gradian

Frequently Asked Questions

How much is 58 arc seconds in radians?

58 arc seconds equals 0.00028119 radians. This is calculated by multiplying 58 by the conversion factor 4.84814 × 10⁻⁶.

What does 58 arc seconds look like in radians?

58 arc seconds equals 0.00028119 radians, a conversion used in navigation, trigonometry, and engineering design.

How do you calculate 58 arc seconds to radians?

Multiply 58 by the conversion factor 4.84814 × 10⁻⁶. The calculation is 58 × 4.84814 × 10⁻⁶ = 0.00028119 radians. This factor is defined by international measurement standards.

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58 arc seconds = 0.000281192 radians
58 arc seconds = 0.000281192 radians — conversion chart

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