Milliwatts per square centimeter to watts per square meter
Type a value in mW/cm² to get it in W/m² instantly.
10,000W/m²
That's 7.3× as bright as sunlight above the atmosphere — nothing on our list beats it. A two-square-meter panel at 20% would make about 4,000 W.
What it means
How much sun is that?
Panels are rated at 1,000 W/m², called one sun. kWh/m² per day here is averaged over 24 hours, not over daylight only.
The math
How to convert mW/cm² to W/m²
To convert milliwatts per square centimeter to watts per square meter, multiply by 10.
Example: 1,000 mW/cm² × 10 = 10,000 W/m².
In the other direction, 1 W/m² = 0.1 mW/cm².
Every unit
Your irradiance in every unit
Tables
mW/cm² to W/m² conversion table
| mW/cm² | W/m² |
|---|---|
| 50 mW/cm² | 500 W/m² |
| 100 mW/cm² | 1,000 W/m² |
| 200 mW/cm² | 2,000 W/m² |
| 400 mW/cm² | 4,000 W/m² |
| 600 mW/cm² | 6,000 W/m² |
| 800 mW/cm² | 8,000 W/m² |
| 1,000 mW/cm² | 10,000 W/m² |
| 1,200 mW/cm² | 12,000 W/m² |
| 1,361 mW/cm² | 13,610 W/m² |
| 1,500 mW/cm² | 15,000 W/m² |
W/m² to mW/cm² conversion table
| W/m² | mW/cm² |
|---|---|
| 50 W/m² | 5 mW/cm² |
| 100 W/m² | 10 mW/cm² |
| 200 W/m² | 20 mW/cm² |
| 400 W/m² | 40 mW/cm² |
| 600 W/m² | 60 mW/cm² |
| 800 W/m² | 80 mW/cm² |
| 1,000 W/m² | 100 mW/cm² |
| 1,200 W/m² | 120 mW/cm² |
| 1,361 W/m² | 136.1 mW/cm² |
| 1,500 W/m² | 150 mW/cm² |
Quick answers
Quick answers
- How many W/m² is 1 mW/cm²?
- 1 mW/cm² is 10 W/m².
- How many W/m² is 10 mW/cm²?
- 10 mW/cm² is 100 W/m².
- How many W/m² is 1,000 mW/cm²?
- 1,000 mW/cm² is 10,000 W/m².
The units
About these units
Milliwatts per square centimeter (mW/cm²)
Used for lasers and UV lamps: 100 mW/cm² is one sun.
Watts per square meter (W/m²)
The SI unit of irradiance. Full sun is about 1,000 W/m².
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