Solid angle converter
Convert sr, msr, µsr, deg², arcmin² and arcsec².
This tool lets you compare solid angles in steradians, submultiples and squared angular units.
Result
Approximation
Quick explanation
Enter a positive or zero solid angle, choose a source unit and a target unit. The result is recalculated automatically in your browser.
Try this too
Convert an angle
For degrees, radians or gradians, use the angle converter.
Additional information
What is a solid angle?
A solid angle describes the opening of a cone or beam in space. Its SI unit is the steradian.
Steradians and square angular units
Square degrees, square arcminutes and square arcseconds are often used to express an apparent area in the sky or in an optical field.
Common uses
This converter can help with optics, astronomy, photometry, imaging, sensors or beam analysis.
Privacy
The conversion is performed in your browser, without sending data to the server.
Limits and reuse
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