%sphere
Percent of Sphere
Geometric System

Percent of Sphere (%sphere)

One percent of a full sphere equals 4π/100 ≈ 0.1257 steradians or about 412.5 square degrees. Provides intuitive scale: a hemisphere is 50%, a cone with 60° half-angle covers about 13%. Used in illumination design and radiation calculations.

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Conversion Factors

1 %sphere 0.1256637 sr
1 %sphere 125.6637 msr
1 %sphere 125663.7 μsr
1 %sphere 125663700 nsr
1 %sphere 412.52961912 deg²
1 %sphere 1485107.4089 arcmin²
1 %sphere 5346390463.1 arcsec²
1 %sphere 0.0099999995 sp
1 %sphere 0.019999999 hemisphere
1 %sphere 0.0799999961 octant
1 %sphere 0.039999998 quadrant

Related Units