Revolutions to Arcseconds Converter
Enter the angle in revolutions below to convert it to arcseconds.
Convert Revolutions to Arcseconds
Enter a value in revolutions (rev) to convert to arcseconds (″).
Revolution to Second of Arc Conversion Table
Table showing various revolution measurements converted to arcseconds. Click any preset value or arrow to load it into the converter.
How to Convert Revolutions to Arcseconds
To convert revolutions to arcseconds, multiply the angle by the following conversion ratio: 1,296,000 arcseconds/revolution.
Since one revolution is equal to 1,296,000 arcseconds, you can use this simple formula to convert:
The angle in arcseconds is equal to the angle in revolutions multiplied by 1,296,000.
For example, here's how to convert 5 revolutions to arcseconds using the formula above.
How Many Arcseconds Are in a Revolution?
There are 1,296,000 arcseconds in a revolution, which is why we use this value in the formula above.
Our revolution to second of arc calculator automatically converts your angle measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Revolutions and arcseconds are both units used to measure angle. Keep reading to learn more about each unit.
What Is a Revolution?
A revolution is a unit of angle equal to 360 degrees (°), the base unit for angle. Complete 360° circle (2π radians). [1]
The revolution is classified as a standard unit of angle. Revolutions can be abbreviated as rev; for example, 1 revolution can be written as 1 rev.
When working with revolutions (rev) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, revolutions (rev) 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 revolutions (rev) and arcseconds (″), keep full floating-point precision (1 rev = 1,296,000 ″; 1 ″ = 0.000000772 rev) during intermediate calculations and round only the final second of arc figure to match your instrument tolerance.
More Revolution & Second of Arc Conversions
Need to calculate in the opposite direction? Use our arcseconds to revolutions calculator to switch your starting unit immediately. You can also explore related tools such as converting arcseconds to revolutions, 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 — Revolutions (rev) to Arcseconds (″)
- [2]NIST SI SpecificationNIST SI (SI Coherent Unit: Radian (rad))·Unit Specifications: Revolution (Turn) (rev) & Second of Arc (″)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9 (Plane Angle))·Conversion Factors & Mathematical Basis (rev to ″)