The arcminute
The arcminute (′) equals 1/60 of a degree. It is used in astronomy, navigation, and optics to express small angular sizes and precision beyond whole degrees — one nautical mile is defined as one arcminute of latitude.
Arcminutes to Arcseconds Converter
1 ′ = 60 ″ (arcminute → arcsecond)
1 ′ = 60 ″
1 arcminute equals 60 arcseconds. To convert arcminutes to arcseconds, multiply the arcminute value by 60. For quick reference: 1 ′ = 60 ″, 5 ′ = 300 ″, 10 ′ = 600 ″, 100 ′ = 6000 ″.
Formula
Arcseconds = Arcminutes × 60Quick
How to convert arcminutes to arcseconds
Take your value
Start with your value in arcminutes.
Multiply by 60
Multiply the arcminute value by 60. This is the exact conversion factor from arcminutes to arcseconds.
Read the result
The product is your value in arcseconds. For example, 5 ′ × 60 = 300 ″.
Conversion formula
The exact factor from arcminutes to arcseconds is 60.
Arcseconds = Arcminutes × 60
Arcminutes to Arcseconds conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Arcminutes (′) | Arcseconds (″) |
|---|---|
| 0.1 ′ | 6 ″ |
| 0.25 ′ | 15 ″ |
| 0.5 ′ | 30 ″ |
| 1 ′ | 60 ″ |
| 2 ′ | 120 ″ |
| 3 ′ | 180 ″ |
| 4 ′ | 240 ″ |
| 5 ′ | 300 ″ |
| 6 ′ | 360 ″ |
| 7 ′ | 420 ″ |
| 8 ′ | 480 ″ |
| 9 ′ | 540 ″ |
| 10 ′ | 600 ″ |
| 11 ′ | 660 ″ |
| 12 ′ | 720 ″ |
| 13 ′ | 780 ″ |
| 14 ′ | 840 ″ |
| 15 ′ | 900 ″ |
| 16 ′ | 960 ″ |
| 18 ′ | 1080 ″ |
| 20 ′ | 1200 ″ |
| 22 ′ | 1320 ″ |
| 24 ′ | 1440 ″ |
| 25 ′ | 1500 ″ |
| 28 ′ | 1680 ″ |
| 30 ′ | 1800 ″ |
| 32 ′ | 1920 ″ |
| 36 ′ | 2160 ″ |
| 40 ′ | 2400 ″ |
| 45 ′ | 2700 ″ |
| 48 ′ | 2880 ″ |
| 50 ′ | 3000 ″ |
| 60 ′ | 3600 ″ |
| 70 ′ | 4200 ″ |
| 75 ′ | 4500 ″ |
| 80 ′ | 4800 ″ |
| 90 ′ | 5400 ″ |
| 100 ′ | 6000 ″ |
| 125 ′ | 7500 ″ |
| 150 ′ | 9000 ″ |
| 200 ′ | 12000 ″ |
| 250 ′ | 15000 ″ |
| 300 ′ | 18000 ″ |
| 400 ′ | 24000 ″ |
| 500 ′ | 30000 ″ |
| 600 ′ | 36000 ″ |
| 750 ′ | 45000 ″ |
| 800 ′ | 48000 ″ |
| 900 ′ | 54000 ″ |
| 1000 ′ | 60000 ″ |
Real-world reference
The full moon spans about 31 arcminutes across the sky. One arcminute of latitude corresponds to one nautical mile. In arcseconds, that gives you: 1 ′ = 60 ″, 10 ′ = 600 ″, 100 ′ = 6000 ″.
Frequently asked questions
- How many arcseconds are in 1 arcminute?
- 1 arcminute equals 60 arcseconds.
- How do I convert arcminutes to arcseconds?
- Multiply the arcminute value by 60. So x ′ × 60 = the equivalent in ″.
- What is 5 arcminutes in arcseconds?
- 5 arcminutes equals 300 arcseconds.
- What is 10 arcminutes in arcseconds?
- 10 arcminutes equals 600 arcseconds.
- What is 100 arcminutes in arcseconds?
- 100 arcminutes equals 6000 arcseconds.
- How do I convert back from arcseconds to arcminutes?
- Multiply the arcsecond value by 0.0166667. For example, 1 ″ = 0.0166667 ′.
- Is the arcminute bigger than the arcsecond?
- Yes. 1 arcminute is larger than 1 arcsecond — specifically 60 times larger.
- Are these conversion factors exact?
- The factor is derived directly from the SI definitions of arcminute and arcsecond; the displayed value is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.
About the arcminute 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.