Convert Octant to Millisteradian
Type the number of octants that you wish to convert to millisteradians.
How to Convert Octants to Millisteradians
The octant and millisteradian are both units of solid angle. 1 octant equals 1570.7963268 millisteradians. This means to convert octants to millisteradians, you multiply by 1570.7963268.
Formula
Step-by-Step Example
Convert 5 octant to millisteradians:
We need to convert octants to millisteradians
Since 1 octant = 1570.7963268 msr, multiply by 1570.7963268
5 × 1570.7963268 = 7853.981634
5 octant = 7853.981634 msr
Octant to Millisteradian Conversion Table
Quick reference table for common octant to millisteradian conversions. Click any value for detailed calculation.
| Octants (octant) | Millisteradians (msr) |
|---|---|
| 0.1 octant | 157.07963268 msr |
| 0.5 octant | 785.3981634 msr |
| 1 octant | 1570.7963268 msr |
| 2 octant | 3141.5926536 msr |
| 5 octant | 7853.981634 msr |
| 10 octant | 15707.963268 msr |
| 25 octant | 39269.90817 msr |
| 50 octant | 78539.81634 msr |
| 100 octant | 157079.63268 msr |
About These Units
Octant (octant)
An octant equals π/2 steradians (≈1.571 sr)—one-eighth of a complete sphere. Represents one corner of a cube viewed from the center. Each octant is bounded by three mutually perpendicular great circles. Used in 3D spatial partitioning.
Millisteradian (msr)
A millisteradian (msr) equals 0.001 steradians or about 3.28 square degrees. Used in radiometry, photometry, and light source specifications. LED beam angle calculations, radiation detector acceptance angles, and luminous intensity measurements use millisteradians.
Frequently Asked Questions
How do I convert octants to millisteradians?
To convert octants to millisteradians, multiply the value by 1570.7963268. For example, 10 octant = 15707.963268 msr.
How many millisteradians are in 1 octant?
1 octant equals 1570.7963268 millisteradians.
What is the formula for octants to millisteradians?
The formula is: msr = octant × 1570.7963268.