Steradians to square degrees
Type a value in sr to get it in deg² instantly.
3,282.806deg²
That's 5× as wide as a torch beam, while a floodlight is 1.4× wider. That covers about 7.958% of everything around you.
Convert the other way: deg² to sr
What it means
How wide is that?
A solid angle describes a cone of directions, not an area. The same solid angle covers more surface the further out you go.
The math
How to convert sr to deg²
To convert steradians to square degrees, multiply by 3,282.81.
Example: 1 sr × 3,282.81 = 3,282.81 deg².
In the other direction, 1 deg² = 0.000304617 sr.
Every unit
Your solid angle in every unit
Tables
sr to deg² conversion table
| sr | deg² |
|---|---|
| 0.001 sr | 3.28281 deg² |
| 0.01 sr | 32.8281 deg² |
| 0.1 sr | 328.281 deg² |
| 0.5 sr | 1,641.4 deg² |
| 1 sr | 3,282.81 deg² |
| 2 sr | 6,565.61 deg² |
| 3.14 sr | 10,308 deg² |
| 6.28 sr | 20,616 deg² |
| 9.42 sr | 30,924 deg² |
| 12.566 sr | 41,251.7 deg² |
deg² to sr conversion table
| deg² | sr |
|---|---|
| 0.001 deg² | 3.046×10⁻⁷ sr |
| 0.01 deg² | 3.046×10⁻⁶ sr |
| 0.1 deg² | 3.046×10⁻⁵ sr |
| 0.5 deg² | 0.000152309 sr |
| 1 deg² | 0.000304617 sr |
| 2 deg² | 0.000609235 sr |
| 3.14 deg² | 0.000956499 sr |
| 6.28 deg² | 0.001913 sr |
| 9.42 deg² | 0.0028695 sr |
| 12.566 deg² | 0.00382782 sr |
Quick answers
Quick answers
- How many deg² is 1 sr?
- 1 sr is 3,282.81 deg².
- How many deg² is 10 sr?
- 10 sr is 32,828.1 deg².
The units
About these units
Steradians (sr)
The SI unit: area on a sphere divided by the radius squared.
Square degrees (deg²)
How sky surveys report their coverage. The sky is 41,253 of them.
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