Arcminutes to Arcseconds
Convert arcminutes to arcseconds instantly — one arcminute is 60 arcseconds.
| Arcminutes | Arcseconds |
|---|---|
| 1 ′ | 60 ″ |
| 2 ′ | 120 ″ |
| 3 ′ | 180 ″ |
| 5 ′ | 300 ″ |
| 10 ′ | 600 ″ |
| 25 ′ | 1500 ″ |
| 50 ′ | 3000 ″ |
| 100 ′ | 6000 ″ |
How to use
- Enter a value in the Arcminutes field.
- The Arcseconds figure appears immediately — no button to press.
- Typing in the Arcseconds field converts back to Arcminutes the same way.
- Use the reference table for the values that come up most often.
Arcminutes to Arcseconds formula
The factor from arcminutes to arcseconds is 60.
″ = ′ × 60
Put another way, one arcminute is exactly 60 arcseconds.
Why this factor: the arcminute and the arcsecond are both defined against the degree, so dividing one definition by the other gives 60 directly. Both definitions are set out in full below.
To go the other way, divide by 60 — or use the Arcseconds to Arcminutes converter, which is the same calculation reversed.
Worked example
Given 30 ′, multiplying by 60 yields 1800 ″.
30 ′ × 60 = 1800 ″
The converter above does this for any value you type, in either direction.
What is an arcminute?
An arcminute is one sixtieth of a degree, used where degrees are too coarse.
Definition: Exactly 1/60 degree. Symbol is the prime (′).
Where it is used: Navigation and latitude (one arcminute of latitude is one nautical mile), astronomy, and optometry.
What is an arcsecond?
An arcsecond is one 3,600th of a degree — the precision unit of astronomy.
Definition: Exactly 1/3600 degree, or 1/60 arcminute. Symbol is the double prime (″).
Where it is used: Telescope resolution and seeing, stellar parallax (the basis of the parsec), and precision surveying.
Arcminutes vs Arcseconds
The arcminute and the arcsecond belong to the same family of units, so converting between them is usually a matter of shifting a decimal point or applying a small whole-number factor.
Frequently asked questions
How many arcseconds are in an arcminute?
One arcminute equals 60 arcseconds.
What is the formula to convert arcminutes to arcseconds?
Multiply the number of arcminutes by 60. To reverse it, divide by 60 instead.
How do I convert arcseconds back to arcminutes?
Divide by 60, which is the same as multiplying by 0.0166666667.
How many arcseconds are in 10 arcminutes?
10 ′ works out to 600 ″.
How is the arcminute defined?
Exactly 1/60 degree. Symbol is the prime (′).