How Many Minutes of Arc in a Degree?
Quick Answer
There are 60 arcminutes in one degree.
1° = 60 arcminutes (60′)
Understanding the Conversion
One degree is divided into 60 arcminutes (written 60′). Arcminutes are used in astronomy, GPS coordinates, navigation, and optics. The angular resolution of the human eye is about 1 arcminute — the basis for '20/20 vision' testing at 20 feet.
Formula
1° = 60 arcminutes (60′)
Common Examples
| Description | Value |
|---|---|
| Human eye resolution limit | ≈1 arcminute |
| GPS coordinate precision (0.001°) | ≈0.06 arcminutes |
| Moon's angular diameter | ≈30 arcminutes (0.5°) |
Quick Reference Table
Use this table for quick conversions between degree and arcminutes:
| degree | arcminutes |
|---|---|
| 1 | 60 |
| 2 | 120 |
| 5 | 300 |
| 10 | 600 |
| 25 | 1,500 |
| 50 | 3,000 |
| 100 | 6,000 |
Frequently Asked Questions
How Many Minutes of Arc in a Degree?
There are 60 arcminutes in one degree. One degree is divided into 60 arcminutes (written 60′). Arcminutes are used in astronomy, GPS coordinates, navigation, and optics. The angular resolution of the human eye is about 1 arcminute — the basis for '20/20 vision' testing at 20 feet.
What is the formula to convert degree to arcminutes?
The formula is: 1° = 60 arcminutes (60′). To convert, multiply the number of degrees by 60 to get the equivalent in arcminutes.
How do I convert arcminutes to degree?
To convert arcminutes to degree, divide the number of arcminutes by 60. For example, 300 arcminutes equals 5 degrees.