Convert Milliwatt per Steradian to Watt per Steradian
Live bidirectional calculator for Milliwatts per Steradian (mW/sr) and Watts per Steradian (W/sr) with verified formula and conversion charts.
Radiant Intensity3 units
How the Calculation Works (Linear Scaling)
Since 1 Watt per Steradian = 1000 Milliwatts per Steradian, divide the value in Milliwatts per Steradian by 1000.
Milliwatt per Steradian to Watt per Steradian Conversion Table
Precomputed values for quick reference and printing.
| Milliwatt per Steradian | Watt per Steradian |
|---|---|
| 1 mW/sr | 0.001 W/sr |
| 2 mW/sr | 0.002 W/sr |
| 3 mW/sr | 0.003 W/sr |
| 4 mW/sr | 0.004 W/sr |
| 5 mW/sr | 0.005 W/sr |
| 6 mW/sr | 0.006 W/sr |
| 7 mW/sr | 0.007 W/sr |
| 8 mW/sr | 0.008 W/sr |
| 9 mW/sr | 0.009 W/sr |
| 10 mW/sr | 0.01 W/sr |
| 15 mW/sr | 0.015 W/sr |
| 20 mW/sr | 0.02 W/sr |
| 25 mW/sr | 0.025 W/sr |
| 30 mW/sr | 0.03 W/sr |
| 40 mW/sr | 0.04 W/sr |
| 50 mW/sr | 0.05 W/sr |
| 75 mW/sr | 0.075 W/sr |
| 100 mW/sr | 0.1 W/sr |
| Watt per Steradian | Milliwatt per Steradian |
|---|---|
| 1 W/sr | 1000 mW/sr |
| 2 W/sr | 2000 mW/sr |
| 3 W/sr | 3000 mW/sr |
| 4 W/sr | 4000 mW/sr |
| 5 W/sr | 5000 mW/sr |
| 6 W/sr | 6000 mW/sr |
| 7 W/sr | 7000 mW/sr |
| 8 W/sr | 8000 mW/sr |
| 9 W/sr | 9000 mW/sr |
| 10 W/sr | 10000 mW/sr |
| 15 W/sr | 15000 mW/sr |
| 20 W/sr | 20000 mW/sr |
| 25 W/sr | 25000 mW/sr |
| 30 W/sr | 30000 mW/sr |
| 40 W/sr | 40000 mW/sr |
| 50 W/sr | 50000 mW/sr |
| 75 W/sr | 75000 mW/sr |
| 100 W/sr | 100000 mW/sr |
๐ Standard Benchmark Reference Values
Infrared LED remote control emitter radiant intensity multiple.
Exact RatioAbout Milliwatt per Steradian (mW/sr)
One thousandth of a watt per steradian (10โปยณ W/sr).
History: Standard metric submultiple commonly utilized for small optical transmitters and consumer remote control LEDs.
Common Uses: Infrared remote control LEDs (e.g. 940 nm emitter ratings), optical proximity sensors, optocoupler emitters.
About Watt per Steradian (W/sr)
The SI coherent derived unit of radiant intensity, defined as radiant power per unit solid angle (1 W/sr). The radiometric counterpart to photometric luminous intensity (candela).
History: Formulated in classical electromagnetic theory and codified by the CIPM for unweighted radiant flux angular distribution.
Common Uses: Infrared emitter beam strength, laser diode angular power specification, thermal radiation directional analysis.
โ Frequently Asked Questions
How many Watts per Steradian are in 1 Milliwatt per Steradian?
There are exactly 0.001 Watts per Steradian in 1 Milliwatt per Steradian (1 mW/sr = 0.001 W/sr).
What is the formula to convert Milliwatt per Steradian to Watt per Steradian?
The formula is: Watt per Steradian = Milliwatt per Steradian / 1000. Since 1 Watt per Steradian = 1000 Milliwatts per Steradian, divide the value in Milliwatts per Steradian by 1000.
How do I convert 1 mW/sr to W/sr manually?
To convert 1 mW/sr to W/sr: apply the formula Watt per Steradian = Milliwatt per Steradian / 1000. Substituting gives: 1 / 1000 = 0.001 W/sr.