20 Milliwatt to Kilowatt
Quick answer
20 Milliwatt (mW) equals
2.000000e-5 kW
To convert 20 Milliwatts to Kilowatts, multiply by 1.000000e-6. Therefore, 20 Milliwatt (mW) equals 2.000000e-5 Kilowatt (kW).
Formula: kW = mW × 1.000000e-6. Calculation: 20 × 1.000000e-6 = 2.000000e-5 kW.
Convert Milliwatt (mW) to Kilowatt (kW) online with our free unit converter. In power, 1 mW = 1.000000e-6 kW. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Milliwatt to Kilowatt
- Step 1 — start with the formula. kW = mW × 0.000001
- Step 2 — substitute your figure. 20 mW × 1.000000e-6
- Step 3 — read the result. 20 mW = 2.000000e-5 kW
- Step 4 — check it in reverse. mW = kW × 1,000,000 returns 20 mW, which matches the figure you started with.
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20 mW = 2.000000e-5 kW
Formula:
kW = mW × 0.000001With your value: 20 mW = 2.000000e-5 kW
How big is that?
Everyday references on a logarithmic scale, all expressed in milliwatt so you can sanity-check the result.
Other Milliwatt to Kilowatt conversions
Milliwatt to Kilowatt Conversion Table
| Milliwatt (mW) | Kilowatt (kW) |
|---|---|
| 0.5 | 5.000000e-7 |
| 1 | 1.000000e-6 |
| 2 | 2.000000e-6 |
| 5 | 5.000000e-6 |
| 10 | 1.000000e-5 |
| 15 | 1.500000e-5 |
| 20 | 2.000000e-5 |
| 25 | 2.500000e-5 |
| 50 | 5.000000e-5 |
| 100 | 0.0001 |
| 250 | 0.00025 |
| 500 | 0.0005 |
| 1000 | 0.001 |
Kilowatt to Milliwatt Conversion Table
| Kilowatt (kW) | Milliwatt (mW) |
|---|---|
| 0.5 | 500,000 |
| 1 | 1,000,000 |
| 2 | 2,000,000 |
| 5 | 5,000,000 |
| 10 | 10,000,000 |
| 15 | 15,000,000 |
| 20 | 20,000,000 |
| 25 | 25,000,000 |
| 50 | 50,000,000 |
| 100 | 100,000,000 |
| 250 | 250,000,000 |
| 500 | 500,000,000 |
| 1000 | 1,000,000,000 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Milliwatt (mW)
Power
Derived from the watt (1 W = 1 J/s).
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Kilowatt (kW)
Power
Derived from the watt (1 W = 1 J/s).
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Milliwatt to Kilowatt
To convert from Milliwatt (mW) to Kilowatt (kW), multiply the value by 1.000000e-6.
Formula: kW = mW × 0.000001
Reverse: mW = kW × 1,000,000
Step-by-Step Example
- Start with your value in Milliwatt. For example: 5 mW
- Multiply by the conversion factor: 5 x 1.000000e-6
- The result is: 5.000000e-6 kW
Milliwatt and Kilowatt Relationship
Both Milliwatt and Kilowatt belong to the Metric (SI) system, making this an intra-system conversion within power. Since 1 Milliwatt represents a fraction of a Kilowatt (1 Kilowatt ≈ 1.000e+6 Milliwatts), the Kilowatt is the larger measurement interval. Understanding the relationship between Milliwatt and Kilowatt is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Milliwatt
The Milliwatt (symbol: mW) is a recognized unit in the Metric (SI) measurement framework, utilized within power applications for precision and standardized data representation.
Common uses of Milliwatt: power calculations, engineering and science, education.
About Kilowatt
The Kilowatt (symbol: kW) is a recognized unit in the Metric (SI) measurement framework, utilized within power applications for precision and standardized data representation.
Common uses of Kilowatt: power calculations, engineering and science, education.
Frequently Asked Questions
- What is 20 Milliwatt in Kilowatt?
- 20 Milliwatt equals 2.000000e-5 Kilowatt.
- How many Kilowatts are in 1 Milliwatt?
- There are exactly 1.000000e-6 Kilowatts in 1 Milliwatt. This means the conversion factor from Milliwatt to Kilowatt is 1.000000e-6.
- What is the formula to convert Milliwatt to Kilowatt?
- The formula to convert Milliwatt to Kilowatt is: kW = mW × 0.000001. For example, to convert 10 Milliwatts to Kilowatts, you would multiply 10 by 1.000000e-6.
- What is a Milliwatt?
- The Milliwatt (symbol: mW) is a recognized unit in the Metric (SI) measurement framework, utilized within power applications for precision and standardized data representation.
- What is a Kilowatt?
- The Kilowatt (symbol: kW) is a recognized unit in the Metric (SI) measurement framework, utilized within power applications for precision and standardized data representation.
- What are the common uses of Milliwatt?
- The Milliwatt is commonly used in power calculations, engineering and science, education.
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Cite this page
UnitConvertLab. (2026). 20 Milliwatt to Kilowatt. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/20-milliwatt-to-kilowatt