Convert Arcsecond to Degree
Use this free converter to change arcseconds (") into degrees (°). Arcsecond and degree both measure angle. As a quick reference, 1 " equals 0.00027777778 °, and 1 ° equals 3600 ".
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Degree (°)
0.00027777778
1 " = 0.00027777778 °
Angle conversion table
| Arcsecond | Degree |
|---|---|
| 0.01 | 0.0000027777778 |
| 0.1 | 0.000027777778 |
| 0.5 | 0.00013888889 |
| 1 | 0.00027777778 |
| 2 | 0.00055555556 |
| 3 | 0.00083333333 |
| 5 | 0.0013888889 |
| 10 | 0.0027777778 |
| 20 | 0.0055555556 |
| 25 | 0.0069444444 |
| 50 | 0.013888889 |
| 100 | 0.027777778 |
| 1,000 | 0.27777778 |
How to convert Arcsecond to Degree
Multiply the arcsecond value by 0.00027777778 to get degrees.
- Enter the number of arcseconds you want to convert.
- The converter instantly shows the equivalent value in degrees.
- Worked example: 15 " × 0.00027777778 = 0.0041666667 °.
- Use the swap button to reverse the conversion (degree to arcsecond).
About these units
Arcsecond (")
- Definition
- An arcsecond (″) is one sixtieth of an arcminute, or 1/3600 of a degree.
- History
- It continues the base-60 subdivision used since ancient astronomy.
- Current use
- Arcseconds measure very small angles such as star positions and telescope resolution.
Degree (°)
- Definition
- A degree (°) is an angle equal to 1/360 of a full turn.
- History
- The 360-degree circle descends from Babylonian astronomy and its base-60 number system.
- Current use
- Degrees measure angles in navigation, geometry, and everyday use.
Frequently asked questions
How many degrees are in a arcsecond?
There are 0.00027777778 ° in 1 ". To convert, multiply the number of arcseconds by 0.00027777778.
How do I convert arcseconds to degrees?
Multiply the arcsecond value by 0.00027777778 to get degrees. For example, 10 " = 0.0027777778 °.
Is this arcsecond-to-degree converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Arcsecond to other angle units
| Unit | 1 Arcsecond equals |
|---|---|
| Degree (°) | 0.00027777778 ° |
| Radian (rad) | 0.0000048481368 rad |
| Gradian (grad) | 0.00030864198 grad |
| Arcminute (') | 0.016666667 ' |
| Turn (turn) | 7.7160e-7 turn |