Kilowatts to Milliwatts
Convert Kilowatts to Milliwatts instantly. Free online power unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Context values
Some unit families need one extra value for a physically accurate result.
Use the converter to see the formula.
Results update instantly for Kilowatts to Milliwatts conversions.
Reserved above the conversion cards and below the converter.
Formula
mW = kW × 1000000
kW = mW × 1e-6
Conversion table
| 1 kW | 1000000 mW |
| 5 kW | 5000000 mW |
| 10 kW | 10000000 mW |
| 20 kW | 20000000 mW |
| 50 kW | 50000000 mW |
| 100 kW | 100000000 mW |
| 500 kW | 500000000 mW |
| 1000 kW | 1000000000 mW |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
What is the source unit in this conversion?
The source unit is the kilowatt (kW). A kilowatt is 1000 watt units.
What is the destination unit in this conversion?
The destination unit is the milliwatt (mW). A milliwatt is 0.001 watt units.
How do I convert kilowatts to milliwatts?
Multiply the kilowatt value by 1000000 to get milliwatt. For example, 1 kW × 1000000 = 1000000 mW.
Is the kilowatts to milliwatts conversion exact?
Yes. Both units are defined by fixed numeric relationships to the watt, so the conversion factor used here, 1000000, is exact.
Where is this conversion commonly used?
It is used when comparing power ratings expressed in kilowatts against equipment, engines, or specifications rated in milliwatts.
Can I convert milliwatts back to kilowatts?
Yes. Multiply the milliwatt value by 1e-6 to get kilowatt.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts kilowatts (kW) into milliwatts (mW), two units used to describe power, the rate at which energy is transferred or work is done.
A kilowatt is 1000 watt units.
A milliwatt is 0.001 watt units.
The formula is mW = kW × 1000000, derived from each unit's fixed relationship to the watt, the SI unit of power.
Because both units are defined by exact numeric relationships to the watt, this conversion is exact rather than approximate.