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Arcseconds to Degrees (" to °) Converter

1 arcsecond (") = 0.000277778 degrees (°). To convert arcseconds to degrees, multiply by 0.000277778: 25 " × 0.000277778 = 0.00694444 °.

1 " = 0.0002777778 °
Convert the other way: Degrees to Arcseconds

Quick facts

How to convert arcseconds to degrees

  1. Take the value in arcseconds.
  2. Multiply it by 0.000277778 (the number of degrees in one arcsecond).
  3. Round the result to the precision you need.
° = " × 0.000277778

Worked example: 25 " × 0.000277778 = 0.00694444 °.

To convert degrees back to arcseconds, multiply by 3,600, or divide by 0.000277778.

Source: BIPM SI Brochure, 9th edition (the radian).

Arcseconds to Degrees conversion table

Arcseconds to Degrees conversion table
Arcseconds ["]Degrees [°]
1 "0.0002777778 °
10 "0.0027777778 °
100 "0.0277777778 °
1000 "0.2777777778 °
10000 "2.7777777778 °
100000 "27.7777777778 °
1000000 "277.7777777778 °

" to ° chart from 1 to 100

Degrees to Arcseconds conversion table

Degrees to Arcseconds conversion table
Degrees [°]Arcseconds ["]
0.001 °3.6 "
0.01 °36 "
0.1 °360 "
0.5 °1800 "
1 °3600 "
2 °7199.9999999999 "
5 °17999.9999999999 "
10 °35999.9999999997 "

Arcseconds vs Degrees

ArcsecondDegree
Symbol"°
Equals1 " = 0.000277778 °1 ° = 3,600 "

What is an arcsecond?

One 60th of an arcminute, or 1/3600 of a degree. Used in astronomy for very small angular measurements, such as star positions.

What is a degree?

One 360th of a full rotation. The everyday unit for angles in geometry, navigation, and construction.

Frequently asked questions

How many degrees are in an arcsecond?

There are 0.000277778 degrees in 1 arcsecond (1 " = 0.0002777778 °).

How many arcseconds are in a degree?

There are 3,600 arcseconds in 1 degree (1 ° = 3600 ").

How do I convert arcseconds to degrees?

Multiply the number of arcseconds by 0.000277778. For example, 10 " × 0.000277778 = 0.00277778 °. To convert back, multiply by 3,600.

What is 10 " in degrees?

10 " = 0.00277778 °.

What is 100 " in degrees?

100 " = 0.0277778 °.

Is the conversion exact?

Yes. The factor comes from the official definitions of both units (BIPM SI Brochure, 9th edition (the radian)). Results are shown to up to 10 decimal places; round them to suit your purpose.

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.

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First published 28 October 2026 · Last reviewed 5 November 2026