Kilowatts to Milliwatts Conversion Calculator

Kilowatts to Milliwatts Calculator

Enter power in kilowatts:

Result in milliwatts: mW

A kW to mW calculator converts power measurements between kilowatts (kW) and milliwatts (mW). This conversion is useful for:
✅ Electronics (low-power circuit design)
✅ Telecommunications (signal strength measurements)
✅ Scientific instruments (precision measurements)
✅ Energy monitoring (small-scale power analysis)

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Conversion Formulas

1. kW to mW

$$P(mW)=P(kW)\times 1,000,000$$

Example:

• Convert 0.005 kW to mW:

  $$0.005\times 1,000,000=5,000\text{ mW}$$

2. mW to kW

$$P(kW)=\frac{P(mW)}{1,000,000}$$

Example:

• Convert 25,000 mW to kW:

  $$25,000÷1,000,000=0.025\text{ kW}$$

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Conversion Table (kW ⇆ mW)

Kilowatts (kW)	Milliwatts (mW)
0.001 kW	1,000 mW
0.01 kW	10,000 mW
0.1 kW	100,000 mW
1 kW	1,000,000 mW
5 kW	5,000,000 mW
10 kW	10,000,000 mW

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How to Use the Calculator

1. Enter kW → Get mW (Multiply by 1,000,000).

2. Enter mW → Get kW (Divide by 1,000,000).

Example Calculations:

• 0.075 kW to mW:

  $$0.075\times 1,000,000=75,000\text{ mW}$$

• 500 mW to kW:

  $$500÷1,000,000=0.0005\text{ kW}$$

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Practical Applications

• RF Engineering: Transmitter output in mW vs. power plant kW

• Medical Devices: Pacemakers (~50,000 mW) vs. hospital generators (~500 kW)

• IoT Devices: Sensors (1-100 mW) vs. their charging stations (5-20 kW)

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Power Unit Hierarchy

Unit	Equivalent in Watts	Relation to kW
1 mW	0.001 W	0.000001 kW
1 W	1 W	0.001 kW
1 kW	1,000 W	1 kW
1 MW	1,000,000 W	1,000 kW

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FAQ

1. How many mW are in 1 kW?

✅ 1 kW = 1,000,000 mW

2. When would I need this conversion?

🔹 When comparing macro power systems (kW) with microelectronics (mW).

3. Is mW the smallest power unit?

❌ No – microwatts (μW) are smaller (1 mW = 1,000 μW).

4. How to convert 2.4 kW to mW?

$$2.4\times 1,000,000=2,400,000\text{ mW}$$

5. What's a real-world example?

🔹 A 5 kW solar panel = 5,000,000 mW, while a Bluetooth module uses 2.5 mW.