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Arcseconds to degrees

1 arcsecond in degrees
1 " = 0.0002778 °
° = " × 0.000277777778

To convert arcseconds to degrees, multiply by 0.000277777778. The table below gives the values people look up most often, and the converter works for any number.

Arcseconds to degrees table

Common arcsecond values converted to degrees.
Arcseconds Degrees
1 " 0.0002778
2 " 0.0005556
3 " 0.0008333
4 " 0.0011111
5 " 0.0013889
10 " 0.0027778
15 " 0.0041667
20 " 0.0055556
25 " 0.0069444
30 " 0.0083333
40 " 0.011111
50 " 0.013889
75 " 0.020833
100 " 0.027778
250 " 0.069444
500 " 0.13889
1,000 " 0.27778

How the conversion works

The relationship is ° = " × 0.000277777778. Both units measure angle, so the conversion is a fixed factor that never changes.

Common questions

How many degrees are in one arcsecond?
One arcsecond equals 0.0002778 degrees. ° = " × 0.000277777778.
How do you convert arcseconds to degrees?
Use ° = " × 0.000277777778. So 10 " is 0.0027778 °.
How many arcseconds are in one degree?
One degree equals 3,600 arcseconds, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked