Quick answer: 1 Arcsecond in Degree
1 " equals 0.000277778 °. To convert Arcsecond to Degree, multiply by 0.000277778 using the free calculator above — no signup needed.
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About Angle Converter
The Angle Converter converts between 5 different units, including Degree, Radian, Gradian, Arcminute, Arcsecond. The base unit is the Degree, and every other unit on this page is defined as an exact multiple of it. Type any value into the calculator above to convert instantly — free, unlimited, no signup and nothing to install.
Common equivalents: 1 Degree = 0.0174533 Radian, 1.111111 Gradian, 60 Arcminute.
Scale of this category: the smallest unit is the Arcsecond (") and the largest is the Radian (rad).
Last updated: 2026-09-15
Angle conversion factors
| Unit | Symbol | Value in Degree |
|---|---|---|
| Degree | ° | 1 ° = 1 ° |
| Radian | rad | 1 rad = 57.29578 ° |
| Gradian | grad | 1 grad = 0.9 ° |
| Arcminute | ' | 1 ' = 0.0166667 ° |
| Arcsecond | " | 1 " = 0.000277778 ° |
Worked Examples
See exactly how the conversion works with real numbers, step by step.
How much is 1 Arcsecond in Degree?
- Multiply 1 by the conversion factor 0.000277778
- 1 Arcsecond = 0.000277778 Degree
How much is 100 Arcsecond in Degree?
- Multiply 100 by the conversion factor 0.000277778
- 100 Arcsecond = 0.0277778 Degree
How much is 1000 Arcsecond in Degree?
- Multiply 1000 by the conversion factor 0.000277778
- 1000 Arcsecond = 0.277778 Degree
Quick Conversion Reference Table
| Arcsecond (") | Degree (°) |
|---|---|
| 1 " (Arcsecond) | 0.000277778 ° (Degree) |
| 2 " (Arcsecond) | 0.000555556 ° (Degree) |
| 5 " (Arcsecond) | 0.00138889 ° (Degree) |
| 10 " (Arcsecond) | 0.00277778 ° (Degree) |
| 20 " (Arcsecond) | 0.00555556 ° (Degree) |
| 50 " (Arcsecond) | 0.0138889 ° (Degree) |
| 100 " (Arcsecond) | 0.0277778 ° (Degree) |
| 500 " (Arcsecond) | 0.138889 ° (Degree) |
| 1000 " (Arcsecond) | 0.277778 ° (Degree) |
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How to Use This Converter
- Enter your value
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FAQ
How much is 1 Arcsecond in Degree?
1 Arcsecond = 0.000277778 Degree.
How do I convert Arcsecond to Degree?
Enter your value in Arcsecond into the converter above and the result in Degree appears instantly. 1 " equals 0.000277778 ° — just multiply your value by 0.000277778.
What is the formula for Arcsecond to Degree?
The formula is: value in Degree = value in Arcsecond × 0.000277778. For example, 100 " × 0.000277778 = 0.0277778 °.
Is this Arcsecond to Degree converter free and accurate?
Yes. This Arcsecond to Degree converter is 100% free, uses the exact international conversion factor (0.000277778), and works on any device with no signup.
How do I convert Degree back to Arcsecond?
To convert back, divide by 0.000277778 (or multiply by 3600). You can also use our dedicated How Many Arcsecond in 1 Degree? page for instant results.
Do I need to download an app or sign up?
No. The converter runs entirely in your browser — nothing to install, no account, no fees. It even keeps working offline once the page has loaded.
Which Angle units are supported?
This converter supports 5 units: Degree, Radian, Gradian, Arcminute, Arcsecond.