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steradian
Symbol:  sr 
Category:  Solid angle 
SI Equivalent:  1 sr
Dimension W 
System:  SI 
 
Notes
Unit used to measure solid angle in the SI system. It is defined as the solid angle of a sphere subtended by a portion of the surface whose area is equal to the square of the sphere's radius. The total solid angle around a point is equal to 4p.
Convert     sr  
1 sr =
Solid angle
  Symbol Unit Name
7.95775×10-2  sp  spat 
1.18181×107  sq '  square arcminute 
4.25452×1010  sq "  square arcsec 
3282.85  sq °  square degree 
Glossary
Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

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A white paper to assist in the evaluation of 3D scanning hardware solutions.