Converter
solid angle · International · Modern
steradian
srexact
- Record
- M435
- Definition quality
- Standardized
- Conversion mode
- multiplicative
- Calculator
- Fully calculable
Definition
Steradian is the coherent SI unit of solid angle.
History & use
Used in radiometry/photometry/physics.
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?
A full sphere is 4π sr.
Sources & evidence
Source tier Tier A · confidence High