plane angle · International · Modern
Non-SI unit accepted for use with the SI; 1° = π/180 rad.
Converter
plane angle · International · Modern
arcsecond
″exact
- Record
- M434
- Definition quality
- Standardized
- Conversion mode
- multiplicative
- Calculator
- Fully calculable
Definition
1 arcsecond = 1/60 arcminute = π/648000 rad.
Reference value
π/648000
History & use
Used for small angles.
Modern use
Still in current use in International. Beyond that, modern use is context-dependent and varies by region and measurement system.
Did you know?
About 4.848 microradians.