Angular Mils to Arcseconds Converter
Enter the angle in angular mils below to convert it to arcseconds.
Convert Angular Mils to Arcseconds
Enter a value in angular mils (mil) to convert to arcseconds (″).
Angular Mil to Second of Arc Conversion Table
Table showing various angular mil measurements converted to arcseconds. Click any preset value or arrow to load it into the converter.
How to Convert Angular Mils to Arcseconds
To convert angular mils to arcseconds, multiply the angle by the following conversion ratio: 202.5 arcseconds/angular mil.
Since one angular mil is equal to 202.5 arcseconds, you can use this simple formula to convert:
The angle in arcseconds is equal to the angle in angular mils multiplied by 202.5.
For example, here's how to convert 5 angular mils to arcseconds using the formula above.
How Many Arcseconds Are in an Angular Mil?
There are 202.5 arcseconds in an angular mil, which is why we use this value in the formula above.
Our angular mil to second of arc calculator automatically converts your angle measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Angular Mils and arcseconds are both units used to measure angle. Keep reading to learn more about each unit.
What Is an Angular Mil?
An angular mil is a unit of angle equal to 0.05625 degrees (°), the base unit for angle. Artillery & compass angle unit (6,400 mils = 360°, 1 mil = 0.05625°). [1]
The angular mil is classified as a standard unit of angle. Angular Mils can be abbreviated as mil; for example, 1 angular mil can be written as 1 mil.
When working with angular mils (mil) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, angular mils (mil) are widely used across standard angle applications within international standard workflows, engineering documentation, and technical data sheets.
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. [2]
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.
When converting angle between angular mils (mil) and arcseconds (″), keep full floating-point precision (1 mil = 202.5 ″; 1 ″ = 0.0049383 mil) during intermediate calculations and round only the final second of arc figure to match your instrument tolerance.
More Angular Mil & Second of Arc Conversions
Need to calculate in the opposite direction? Use our arcseconds to angular mils calculator to switch your starting unit immediately. You can also explore related tools such as converting arcseconds to angular mils, converting angular mils to degrees, or converting degrees to radians.
Frequently Asked Questions
References
- [1]NIST CUU StandardNIST CUU (Non-SI Units Accepted for Use (deg, arcmin, arcsec))·Angle Metrology Standard — Angular Mils (mil) to Arcseconds (″)
- [2]NIST SI SpecificationNIST SI (SI Coherent Unit: Radian (rad))·Unit Specifications: Angular Mil (NATO) (mil) & Second of Arc (″)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9 (Plane Angle))·Conversion Factors & Mathematical Basis (mil to ″)