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Power converter

milliwatt to hectowatt

Convert milliwatt (mW) to hectowatt (hW). Use an editable power converter, conversion formula, and reference table.

0.00001

1 mW = 0.00001 hW

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Conversion formula

hW = mW × 0.00001

One milliwatt equals 0.00001 hectowatt. Multiply your value in milliwatt by this factor to get hectowatt. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 milliwatt:
5 × 0.00001 = 0.00005 hW

Conversion table

milliwatt (mW)hectowatt (hW)
0.011e-7
0.10.000001
10.00001
20.00002
50.00005
100.0001
250.00025
500.0005
1000.001
10000.01

About these measurements

Power is the rate of energy transfer.

The base reference used here is the watt. One milliwatt is 0.001 base units; one hectowatt is 100 base units.

Important distinctions

Mechanical horsepower and metric horsepower are distinct units.

Precision

The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.

Common questions

How do I convert mW to hW?

Multiply the quantity in mW by 0.00001. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the hectowatt to milliwatt converter.

Reference

NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.

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