Convert Square Degree to Spat
Convert square degrees to spats by entering a value below.
How to Convert Square Degrees to Spats
The square degree and spat are both units of solid angle. 1 spat equals 41252.963928 square degrees. This means to convert square degrees to spats, you divide by 41252.963928.
Formula
Step-by-Step Example
Convert 5 deg² to spats:
We need to convert square degrees to spats
Since 1 sp = 41252.963928 deg², divide by 41252.963928
5 ÷ 41252.963928 = 0.0001212034
5 deg² = 0.0001212034 sp
Square Degree to Spat Conversion Table
Quick reference table for common square degree to spat conversions. Click any value for detailed calculation.
| Square Degrees (deg²) | Spats (sp) |
|---|---|
| 0.1 deg² | 2.4240682482e-6 sp |
| 0.5 deg² | 1.2120341241e-5 sp |
| 1 deg² | 2.4240682482e-5 sp |
| 2 deg² | 4.8481364963e-5 sp |
| 5 deg² | 0.0001212034 sp |
| 10 deg² | 0.0002424068 sp |
| 25 deg² | 0.0006060171 sp |
| 50 deg² | 0.0012120341 sp |
| 100 deg² | 0.0024240682 sp |
About These Units
Square Degree (deg²)
A square degree (deg² or sq.deg.) equals (π/180)² ≈ 0.000305 steradians. A complete sphere covers 41,253 square degrees. The full Moon is about 0.2 deg². Common in astronomy: survey areas, galaxy cluster sizes, and cosmic microwave background maps.
Spat (sp)
The spat equals 4π steradians (≈12.566 sr)—the solid angle subtended by a complete sphere as seen from its center. One spat = 41,253 square degrees = 1 full sphere. Used in radiation physics and isotropic source calculations. Rarely used; steradians preferred.
Frequently Asked Questions
How do I convert square degrees to spats?
To convert square degrees to spats, divide the value by 41252.963928. For example, 10 deg² = 0.0002424068 sp.
How many spats are in 1 square degree?
1 square degree equals 2.4240682482e-5 spats.
What is the formula for square degrees to spats?
The formula is: sp = deg² ÷ 41252.963928.