Arcseconds to Arcminutes Converter
Enter the angle in arcseconds below to convert it to arcminutes.
Convert Arcseconds to Arcminutes
Enter a value in arcseconds (″) to convert to arcminutes (′).
Second of Arc to Minute of Arc Conversion Table
Table showing various second of arc measurements converted to arcminutes. Click any preset value or arrow to load it into the converter.
| Arcseconds (″) | Arcminutes (′) |
|---|---|
| 1 ″ | 0.0166667 ′ |
| 2 ″ | 0.0333333 ′ |
| 2.5 ″ | 0.0416667 ′ |
| 5 ″ | 0.0833333 ′ |
| 10 ″ | 0.1666667 ′ |
| 15 ″ | 0.25 ′ |
| 20 ″ | 0.3333333 ′ |
| 25 ″ | 0.4166667 ′ |
| 30 ″ | 0.5 ′ |
| 50 ″ | 0.8333333 ′ |
How to Convert Arcseconds to Arcminutes
To convert arcseconds to arcminutes, multiply the angle by the following conversion ratio: 0.0166667 arcminutes/second of arc.
Since one second of arc is equal to 0.0166667 arcminutes, you can use this simple formula to convert:
The angle in arcminutes is equal to the angle in arcseconds multiplied by 0.0166667.
For example, here's how to convert 5 arcseconds to arcminutes using the formula above.
How Many Arcminutes Are in a Second of Arc?
There are 0.0166667 arcminutes in a second of arc, which is why we use this value in the formula above.
Our second of arc to minute of arc calculator automatically converts your angle measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Arcseconds and arcminutes are both units used to measure angle. Keep reading to learn more about each unit.
What Is a Second of Arc?
A second of arc is a unit of angle equal to 1/3,600 of a degree (0.000277778 °). 1/3600 of a degree. [1]
The second of arc is classified as a standard unit of angle. Arcseconds can be abbreviated as ″; for example, 1 second of arc can be written as 1 ″.
When working with arcseconds (″) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, arcseconds (″) are widely used across fine-tolerance laboratory, analytical, and micro-scale angle measurements within international standard workflows, engineering documentation, and technical data sheets.
What Is a Minute of Arc?
A minute of arc is a unit of angle equal to 1/60 of a degree (0.0166667 °). 1/60 of a degree. [2]
The minute of arc is classified as a standard unit of angle. Arcminutes can be abbreviated as ′; for example, 1 minute of arc can be written as 1 ′.
When working with arcminutes (′) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, arcminutes (′) are widely used across standard angle applications within international standard workflows, engineering documentation, and technical data sheets.
When converting angle between arcseconds (″) and arcminutes (′), keep full floating-point precision (1 ″ = 0.0166667 ′; 1 ′ = 60 ″) during intermediate calculations and round only the final minute of arc figure to match your instrument tolerance.
More Second of Arc & Minute of Arc Conversions
Need to calculate in the opposite direction? Use our arcminutes to arcseconds calculator to switch your starting unit immediately. You can also explore related tools such as converting arcminutes to arcseconds, converting degrees to radians, or converting radians to degrees.
Frequently Asked Questions
References
- [1]NIST CUU StandardNIST CUU (Non-SI Units Accepted for Use (deg, arcmin, arcsec))·Angle Metrology Standard — Arcseconds (″) to Arcminutes (′)
- [2]NIST SI SpecificationNIST SI (SI Coherent Unit: Radian (rad))·Unit Specifications: Second of Arc (″) & Minute of Arc (′)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9 (Plane Angle))·Conversion Factors & Mathematical Basis (″ to ′)