deg to arcsec Online Converter
Convert deg to arcsec instantly with this accurate online converter. Ideal for astronomy, navigation, and mathematics. Reliable results in seconds.
Degree
Second of arc
How to convert deg to arcsec
Three quick steps turn any degree value into precise arcseconds.
Enter the degree value
Type the number of degrees you want to convert into the input field.
Trigger the calculation
The tool multiplies your input by 3600 using the standard angle conversion factor.
Read your arcsec result
The converted value in arcseconds appears immediately, ready to copy or use.
Why use this deg to arcsec Converter?
Skip manual math and get precise arcsecond values the moment you need them.
The Mathematical Formula
arcsec = deg × 3600. One full degree contains exactly 3,600 arcseconds, since 1° = 60′ and 1′ = 60″.
Built for Precision
Calculations use exact conversion factors, so even small fractional degrees translate into reliable arcsecond values.
Saves Time and Effort
No need to multiply by hand or open a calculator; just input your number and grab the result instantly.
Quick Reference
| Degree | Second of arc |
|---|---|
| 1 deg | 3600 arcsec |
| 2 deg | 7200 arcsec |
| 5 deg | 18000 arcsec |
| 10 deg | 36000 arcsec |
| 20 deg | 72000 arcsec |
| 50 deg | 180000 arcsec |
Practical Examples of deg to arcsec
Real-world scenarios where this conversion is useful.
Stellar Observation
A telescope setting of 0.5° equals 1,800 arcsec, useful for aligning high-magnification optics.
GPS and Navigation
Latitude offsets of 0.01° translate to 36 arcsec, the resolution level used in surveying coordinates.
Astronomical Catalogs
Star coordinates listed in degrees are often published in arcseconds for finer positional accuracy.
Engineering and Optics
Lens calibration angles of 1.25° convert to 4,500 arcsec for precise beam alignment specifications.
Frequently Asked Questions
Common queries regarding this specific conversion.
Q.How many arcseconds are in one degree?
There are exactly 3,600 arcseconds in one degree, derived from 60 arcminutes per degree and 60 arcseconds per arcminute.
Q.What is the formula to convert deg to arcsec?
Multiply the degree value by 3,600. For example, 2° × 3,600 = 7,200 arcsec.
Q.Where is this conversion commonly used?
It is most common in astronomy, geodesy, optics, and navigation, where very small angular measurements are required.
Q.Can I convert fractional degrees with this tool?
Yes. Decimal degree values are supported, so inputs like 0.001 or 45.75 produce accurate arcsecond outputs.
Discover Related Tools
Need to convert back? Use the reverse Second of arc to Degree calculator. For other measurements, explore our complete suite of Angle & Rotation Converters or the full Unit Converter Hub.