Convert Revolutions to Arcseconds (rev to ″)
1 revolution (rev) = 1296000 seconds of arc (″). 1 ″ = 7.716049383 × 10⁻⁷ rev. Example: 15 rev = 15 × 1296000 = 19440000 ″.
Also searched as revolutions to ″, revolutions in ″, revolutions into seconds of arc, rev to ″, rev in seconds of arc, rev into second of arc, revolution to second of arc, rev to seconds of arc converter and how many seconds of arc in a revolution.
1 rev = 1296000 ″
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk revolution to second of arc converter to paste a column from Excel.
How to Convert Revolution to Arcsecond
- 1 rev = 1296000 ″
- 1 ″ = 7.716049383 × 10⁻⁷ rev
- Example: convert 15 rev to ″: 15 rev = 15 × 1296000 ″ = 19440000 ″
Formula
″ = rev × 1296000
Derivation from SI units:
- 1 revolution = 2π rad = 360°.
- 1″ = (1/3600)° = π/648 000 rad.
- 1 rev = 6.28318530718 rad ÷ 0.000004848136811095 rad per ″ = 1296000 ″
Both units are defined exactly, so the factor is exact. Revolution definition: revolution; Arcsecond definition: second of arc.
Worked examples
- A reading of 1 rev converts to 1296000 ″.
1 rev × 1296000 = 1296000 ″ - A value of 3 rev is 3888000 ″.
3 rev × 1296000 = 3888000 ″
Revolution to Arcsecond conversion table
| Revolutions (rev) | Arcseconds (″) |
|---|---|
| 0.25 rev | 324000 ″ |
| 0.5 rev | 648000 ″ |
| 0.75 rev | 972000 ″ |
| 1 rev | 1296000 ″ |
| 1.5 rev | 1944000 ″ |
| 2 rev | 2592000 ″ |
| 3 rev | 3888000 ″ |
| 5 rev | 6480000 ″ |
| 10 rev | 12960000 ″ |
| 100 rev | 129600000 ″ |
Where it's used
Revolutions are used for rotating machinery (rpm), while seconds of arc appear in astronomy (parallax, star positions). Both measure plane angle, so the conversion is a fixed factor.
Revolution to other angle units
| Conversion | 1 rev equals |
|---|---|
| revolution to second of arc | 1296000 ″ |
| revolution to radian | 6.283185307 rad |
| revolution to degree | 360 ° |
| revolution to gradian | 400 gon |
| revolution to minute of arc | 21600 ′ |
Frequently asked questions
How many seconds of arc are in 1 revolution?
1 rev = 1296000 ″.
How do I convert revolutions to seconds of arc?
Multiply the value in rev by 1296000. For example, 15 rev × 1296000 = 19440000 ″.
Is the rev to ″ conversion exact?
Yes. Both units are defined exactly, and 1 rev is exactly 1296000 ″.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (radian) and Table 8 (non-SI units accepted for use with the SI).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Revolutions to Arcseconds (rev to ″). Retrieved October 25, 2026, from https://scientificconverters.com/angle/revolutions-to-arcseconds/
IEEE
Scientific Converters, "Convert Revolutions to Arcseconds (rev to ″)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/angle/revolutions-to-arcseconds/