Convert Milliwatt per Steradian Square Meter to Watt per Steradian Square Meter
Live bidirectional calculator for Milliwatts per Steradian Square Meter (mW/(sr·m²)) and Watts per Steradian Square Meter (W/(sr·m²)) with verified formula and conversion charts.
Radiance4 units
How the Calculation Works (Linear Scaling)
Since 1 Watt per Steradian Square Meter = 1000 Milliwatts per Steradian Square Meter, divide the value in Milliwatts per Steradian Square Meter by 1000.
Milliwatt per Steradian Square Meter to Watt per Steradian Square Meter Conversion Table
Precomputed values for quick reference and printing.
| Milliwatt per Steradian Square Meter | Watt per Steradian Square Meter |
|---|---|
| 1 mW/(sr·m²) | 0.001 W/(sr·m²) |
| 2 mW/(sr·m²) | 0.002 W/(sr·m²) |
| 3 mW/(sr·m²) | 0.003 W/(sr·m²) |
| 4 mW/(sr·m²) | 0.004 W/(sr·m²) |
| 5 mW/(sr·m²) | 0.005 W/(sr·m²) |
| 6 mW/(sr·m²) | 0.006 W/(sr·m²) |
| 7 mW/(sr·m²) | 0.007 W/(sr·m²) |
| 8 mW/(sr·m²) | 0.008 W/(sr·m²) |
| 9 mW/(sr·m²) | 0.009 W/(sr·m²) |
| 10 mW/(sr·m²) | 0.01 W/(sr·m²) |
| 15 mW/(sr·m²) | 0.015 W/(sr·m²) |
| 20 mW/(sr·m²) | 0.02 W/(sr·m²) |
| 25 mW/(sr·m²) | 0.025 W/(sr·m²) |
| 30 mW/(sr·m²) | 0.03 W/(sr·m²) |
| 40 mW/(sr·m²) | 0.04 W/(sr·m²) |
| 50 mW/(sr·m²) | 0.05 W/(sr·m²) |
| 75 mW/(sr·m²) | 0.075 W/(sr·m²) |
| 100 mW/(sr·m²) | 0.1 W/(sr·m²) |
| Watt per Steradian Square Meter | Milliwatt per Steradian Square Meter |
|---|---|
| 1 W/(sr·m²) | 1000 mW/(sr·m²) |
| 2 W/(sr·m²) | 2000 mW/(sr·m²) |
| 3 W/(sr·m²) | 3000 mW/(sr·m²) |
| 4 W/(sr·m²) | 4000 mW/(sr·m²) |
| 5 W/(sr·m²) | 5000 mW/(sr·m²) |
| 6 W/(sr·m²) | 6000 mW/(sr·m²) |
| 7 W/(sr·m²) | 7000 mW/(sr·m²) |
| 8 W/(sr·m²) | 8000 mW/(sr·m²) |
| 9 W/(sr·m²) | 9000 mW/(sr·m²) |
| 10 W/(sr·m²) | 10000 mW/(sr·m²) |
| 15 W/(sr·m²) | 15000 mW/(sr·m²) |
| 20 W/(sr·m²) | 20000 mW/(sr·m²) |
| 25 W/(sr·m²) | 25000 mW/(sr·m²) |
| 30 W/(sr·m²) | 30000 mW/(sr·m²) |
| 40 W/(sr·m²) | 40000 mW/(sr·m²) |
| 50 W/(sr·m²) | 50000 mW/(sr·m²) |
| 75 W/(sr·m²) | 75000 mW/(sr·m²) |
| 100 W/(sr·m²) | 100000 mW/(sr·m²) |
About Milliwatt per Steradian Square Meter (mW/(sr·m²))
One thousandth of a watt per steradian square meter (10⁻³ W/(sr·m²)).
History: Convenient submultiple in low-temperature infrared radiometry and nighttime hyperspectral imaging.
Common Uses: Nighttime satellite radiometry, faint astronomical source observation, ambient infrared noise measurement.
About Watt per Steradian Square Meter (W/(sr·m²))
The SI coherent derived unit of radiance, defined as radiant power per unit solid angle per unit projected surface area (1 W/(sr·m²)). The radiometric counterpart to luminance (cd/m²).
History: Fundamental quantity in radiometry and remote sensing; invariant along an optical path through lossless optical systems (conservation of etendue).
Common Uses: Thermal imaging camera calibration, satellite Earth observation sensors, blackbody radiation spectrum calculations.
❓ Frequently Asked Questions
How many Watts per Steradian Square Meter are in 1 Milliwatt per Steradian Square Meter?
There are exactly 0.001 Watts per Steradian Square Meter in 1 Milliwatt per Steradian Square Meter (1 mW/(sr·m²) = 0.001 W/(sr·m²)).
What is the formula to convert Milliwatt per Steradian Square Meter to Watt per Steradian Square Meter?
The formula is: Watt per Steradian Square Meter = Milliwatt per Steradian Square Meter / 1000. Since 1 Watt per Steradian Square Meter = 1000 Milliwatts per Steradian Square Meter, divide the value in Milliwatts per Steradian Square Meter by 1000.
How do I convert 1 mW/(sr·m²) to W/(sr·m²) manually?
To convert 1 mW/(sr·m²) to W/(sr·m²): apply the formula Watt per Steradian Square Meter = Milliwatt per Steradian Square Meter / 1000. Substituting gives: 1 / 1000 = 0.001 W/(sr·m²).