How to convert arcseconds to degrees
° = ″ × 0.0002777777778Because one degree equals 3,600 arcseconds, you can also divide: ° = ″ ÷ 3,600.
An arcsecond is smaller than a degree: it takes 3,600 arcseconds to make one degree.
Worked examples
- 1 arcsecond1 ″ × 0.0002777777778 = 0.0002777777778 °
- 5 arcseconds5 ″ × 0.0002777777778 = 0.001388888889 °
- 10 arcseconds10 ″ × 0.0002777777778 = 0.002777777778 °
- 20 arcseconds20 ″ × 0.0002777777778 = 0.005555555556 °
- 100 arcseconds100 ″ × 0.0002777777778 = 0.02777777778 °
Arcseconds to degrees conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Arcseconds (″) | Degrees (°) |
|---|---|
| 0.1 ″ | 0.000027777778 ° |
| 0.25 ″ | 0.000069444444 ° |
| 0.5 ″ | 0.00013888889 ° |
| 1 ″ | 0.00027777778 ° |
| 2 ″ | 0.00055555556 ° |
| 3 ″ | 0.00083333333 ° |
| 4 ″ | 0.0011111111 ° |
| 5 ″ | 0.0013888889 ° |
| 6 ″ | 0.0016666667 ° |
| 7 ″ | 0.0019444444 ° |
| 8 ″ | 0.0022222222 ° |
| 9 ″ | 0.0025 ° |
| 10 ″ | 0.0027777778 ° |
| Arcseconds (″) | Degrees (°) |
|---|---|
| 12 ″ | 0.0033333333 ° |
| 15 ″ | 0.0041666667 ° |
| 20 ″ | 0.0055555556 ° |
| 25 ″ | 0.0069444444 ° |
| 30 ″ | 0.0083333333 ° |
| 40 ″ | 0.011111111 ° |
| 50 ″ | 0.013888889 ° |
| 75 ″ | 0.020833333 ° |
| 100 ″ | 0.027777778 ° |
| 250 ″ | 0.069444444 ° |
| 500 ″ | 0.13888889 ° |
| 1,000 ″ | 0.27777778 ° |
About the units
Arcsecond (″)
The arcsecond (″) is a unit of angle. One arcsecond equals 0.000004848136811 radians (rad).
Degree (°)
One 360th of a full turn. One degree equals 0.01745329252 radians (rad).
Frequently asked questions
How many degrees are in one arcsecond?
There are 0.0002777777778 degrees in one arcsecond, and this value is exact by definition.
How do I convert arcseconds to degrees?
Multiply the number of arcseconds by 0.0002777777778. For example, 10 ″ × 0.0002777777778 = 0.002777777778 °.
How many arcseconds are in one degree?
One degree equals 3,600 arcseconds. That is the reverse factor, 1 ÷ 0.0002777777778.
What is 10 arcseconds in degrees?
10 ″ = 0.002777777778 °.
Is this ″ to ° converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.