Kilojoules per square meter to millijoules per square centimeter
Type a value in kJ/m² to get it in mJ/cm² instantly.
1,000mJ/cm²
That's 25× as strong as the UV dose for drinking water, while a laser hair-removal pulse is 10× stronger.
What it means
How strong a dose is that?
Dose = irradiance × time. Germicidal doses are at 254 nm; sunburn references are erythema-weighted, so they do not compare directly with disinfection.
The math
How to convert kJ/m² to mJ/cm²
To convert kilojoules per square meter to millijoules per square centimeter, multiply by 100.
Example: 10 kJ/m² × 100 = 1,000 mJ/cm².
In the other direction, 1 mJ/cm² = 0.01 kJ/m².
Every unit
That dose in every unit
Tables
kJ/m² to mJ/cm² conversion table
| kJ/m² | mJ/cm² |
|---|---|
| 1 kJ/m² | 100 mJ/cm² |
| 5 kJ/m² | 500 mJ/cm² |
| 10 kJ/m² | 1,000 mJ/cm² |
| 16 kJ/m² | 1,600 mJ/cm² |
| 20 kJ/m² | 2,000 mJ/cm² |
| 40 kJ/m² | 4,000 mJ/cm² |
| 60 kJ/m² | 6,000 mJ/cm² |
| 100 kJ/m² | 10,000 mJ/cm² |
| 186 kJ/m² | 18,600 mJ/cm² |
| 250 kJ/m² | 25,000 mJ/cm² |
| 500 kJ/m² | 50,000 mJ/cm² |
mJ/cm² to kJ/m² conversion table
| mJ/cm² | kJ/m² |
|---|---|
| 1 mJ/cm² | 0.01 kJ/m² |
| 5 mJ/cm² | 0.05 kJ/m² |
| 10 mJ/cm² | 0.1 kJ/m² |
| 16 mJ/cm² | 0.16 kJ/m² |
| 20 mJ/cm² | 0.2 kJ/m² |
| 40 mJ/cm² | 0.4 kJ/m² |
| 60 mJ/cm² | 0.6 kJ/m² |
| 100 mJ/cm² | 1 kJ/m² |
| 186 mJ/cm² | 1.86 kJ/m² |
| 250 mJ/cm² | 2.5 kJ/m² |
| 500 mJ/cm² | 5 kJ/m² |
Quick answers
Quick answers
- How many mJ/cm² is 1 kJ/m²?
- 1 kJ/m² is 100 mJ/cm².
- How many mJ/cm² is 10 kJ/m²?
- 10 kJ/m² is 1,000 mJ/cm².
The units
About these units
Kilojoules per square meter (kJ/m²)
Used for daily sun exposure.
Millijoules per square centimeter (mJ/cm²)
UV disinfection and curing doses.
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