Attosteradians: conversions & definition
Attosteradians (asr) represent solid angle. One unit equals 10^-18 sr. A steradian is the solid angle that subtends an area equal to radius squared on a sphere.
Choose the unit you need
Each row converts one asr. Open a converter to enter any value and see its formula, worked example and reference table. Results below are rounded to 10 significant digits.
| Convert to | Equivalent value | Calculator |
|---|---|---|
| Steradians (sr) | ≈ 1e-18 | Convert asr to sr |
| Millisteradians (msr) | ≈ 1e-15 | Convert asr to msr |
| Kilosteradians (ksr) | ≈ 1e-21 | Convert asr to ksr |
| Microsteradians (µsr) | ≈ 1e-12 | Convert asr to µsr |
| Megasteradians (Msr) | ≈ 1e-24 | Convert asr to Msr |
| Nanosteradians (nsr) | ≈ 1e-9 | Convert asr to nsr |
| Gigasteradians (Gsr) | ≈ 1e-27 | Convert asr to Gsr |
| Centisteradians (csr) | ≈ 1e-16 | Convert asr to csr |
| Decisteradians (dsr) | ≈ 1e-17 | Convert asr to dsr |
| Hectosteradians (hsr) | ≈ 1e-20 | Convert asr to hsr |
| Decasteradians (dasr) | ≈ 1e-19 | Convert asr to dasr |
| Picosteradians (psr) | ≈ 0.000001 | Convert asr to psr |
| Terasteradians (Tsr) | ≈ 1e-30 | Convert asr to Tsr |
| Femtosteradians (fsr) | ≈ 0.001 | Convert asr to fsr |
| Petasteradians (Psr) | ≈ 1e-33 | Convert asr to Psr |
| Exasteradians (Esr) | ≈ 1e-36 | Convert asr to Esr |
| Zeptosteradians (zsr) | ≈ 1,000 | Convert asr to zsr |
| Zettasteradians (Zsr) | ≈ 1e-39 | Convert asr to Zsr |
| Yoctosteradians (ysr) | ≈ 1,000,000 | Convert asr to ysr |
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