The degree
The degree (°) divides a full rotation into 360 equal parts, a convention traced to Babylonian sexagesimal astronomy. It is the everyday unit for angles in navigation, geography (latitude/longitude), construction, and general use.
Degrees to Arcseconds Converter
1 ° = 3600 ″ (degree → arcsecond)
1 ° = 3600 ″
1 degree equals 3600 arcseconds. To convert degrees to arcseconds, multiply the degree value by 3600. For quick reference: 1 ° = 3600 ″, 5 ° = 18000 ″, 10 ° = 36000 ″, 100 ° = 360000 ″.
Formula
Arcseconds = Degrees × 3600Quick
How to convert degrees to arcseconds
Take your value
Start with your value in degrees.
Multiply by 3600
Multiply the degree value by 3600. This is the exact conversion factor from degrees to arcseconds.
Read the result
The product is your value in arcseconds. For example, 5 ° × 3600 = 18000 ″.
Conversion formula
The exact factor from degrees to arcseconds is 3600.
Arcseconds = Degrees × 3600
Degrees to Arcseconds conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Degrees (°) | Arcseconds (″) |
|---|---|
| 0.1 ° | 360 ″ |
| 0.25 ° | 900 ″ |
| 0.5 ° | 1800 ″ |
| 1 ° | 3600 ″ |
| 2 ° | 7200 ″ |
| 3 ° | 10800 ″ |
| 4 ° | 14400 ″ |
| 5 ° | 18000 ″ |
| 6 ° | 21600 ″ |
| 7 ° | 25200 ″ |
| 8 ° | 28800 ″ |
| 9 ° | 32400 ″ |
| 10 ° | 36000 ″ |
| 11 ° | 39600 ″ |
| 12 ° | 43200 ″ |
| 13 ° | 46800 ″ |
| 14 ° | 50400 ″ |
| 15 ° | 54000 ″ |
| 16 ° | 57600 ″ |
| 18 ° | 64800 ″ |
| 20 ° | 72000 ″ |
| 22 ° | 79200 ″ |
| 24 ° | 86400 ″ |
| 25 ° | 90000 ″ |
| 28 ° | 100800 ″ |
| 30 ° | 108000 ″ |
| 32 ° | 115200 ″ |
| 36 ° | 129600 ″ |
| 40 ° | 144000 ″ |
| 45 ° | 162000 ″ |
| 48 ° | 172800 ″ |
| 50 ° | 180000 ″ |
| 60 ° | 216000 ″ |
| 70 ° | 252000 ″ |
| 75 ° | 270000 ″ |
| 80 ° | 288000 ″ |
| 90 ° | 324000 ″ |
| 100 ° | 360000 ″ |
| 125 ° | 450000 ″ |
| 150 ° | 540000 ″ |
| 200 ° | 720000 ″ |
| 250 ° | 900000 ″ |
| 300 ° | 1080000 ″ |
| 400 ° | 1440000 ″ |
| 500 ° | 1800000 ″ |
| 600 ° | 2160000 ″ |
| 750 ° | 2700000 ″ |
| 800 ° | 2880000 ″ |
| 900 ° | 3240000 ″ |
| 1000 ° | 3600000 ″ |
Real-world reference
A right angle is 90°. A straight line is 180°. In arcseconds, that gives you: 1 ° = 3600 ″, 10 ° = 36000 ″, 100 ° = 360000 ″.
Frequently asked questions
- How many arcseconds are in 1 degree?
- 1 degree equals 3600 arcseconds.
- How do I convert degrees to arcseconds?
- Multiply the degree value by 3600. So x ° × 3600 = the equivalent in ″.
- What is 5 degrees in arcseconds?
- 5 degrees equals 18000 arcseconds.
- What is 10 degrees in arcseconds?
- 10 degrees equals 36000 arcseconds.
- What is 100 degrees in arcseconds?
- 100 degrees equals 360000 arcseconds.
- How do I convert back from arcseconds to degrees?
- Multiply the arcsecond value by 0.000277778. For example, 1 ″ = 0.000277778 °.
- Is the degree bigger than the arcsecond?
- Yes. 1 degree is larger than 1 arcsecond — specifically 3600 times larger.
- Are these conversion factors exact?
- The factor is derived directly from the SI definitions of degree and arcsecond; the displayed value is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.
About the degree and the arcsecond
The arcsecond
The arcsecond (″) equals 1/3600 of a degree, or 1/60 of an arcminute. It is the standard unit for extremely small angles in astronomy and geodesy — a star's parallax shift of one arcsecond at one astronomical unit baseline defines the parsec.