1 Second to Degrees

1" ≈ 0.00027778°

Calculation: ° = 1" × 0.000277778 ≈ 0.00027778°

Second to Degree Converter

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Sig. Figures:

How wide is 1"?

1 second (0 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

What does 1" look like?

Illustration of a telescope crosshair reticle
1 second (0 degrees) is comparable to the precision of a telescope crosshair, an almost imperceptible angle.

How to Convert Second to Degree

1 second = 0.000277778 degrees

Degree = Second × 0.000277778

Example: 1" × 0.000277778 = 0.00027778°

Reverse Conversion

To convert degrees back to seconds:

  • Remember, 1 degree equals 3600 seconds.
  • To convert 0.00027778° to", multiply 0.00027778 x 3600, resulting in 1".

1 " is also equal to:

  • 0.00030864 gradian
About these units

Second: An arcsecond (second of arc) is 1/60 of an arcminute.It is common in astronomy, surveying, astrometry, and precision optics for high-precision angles.

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 1 second in degrees?

1 second equals 0.00027778 degrees. This is calculated by multiplying 1 by the conversion factor 0.000277778.

What does 1 second look like in degrees?

1 second (0.00027778 degrees) is a fraction of an arc minute; 3600 arc seconds make one degree.

How do you calculate 1 second to degrees?

Multiply 1 by the conversion factor 0.000277778. The calculation is 1 × 0.000277778 = 0.00027778 degrees. This factor is defined by international measurement standards.

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1 second = 0.000277778 degrees
1 second = 0.000277778 degrees — conversion chart

Nearby Conversions

2 seconds0.0005556 degrees 3 seconds0.0008333 degrees 4 seconds0.001111 degrees 5 seconds0.001389 degrees 6 seconds0.001667 degrees 7 seconds0.001944 degrees 8 seconds0.002222 degrees 9 seconds0.0025 degrees 10 seconds0.002778 degrees 11 seconds0.003056 degrees

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

Also convert Seconds 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.