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Power converter

femtowatt to picowatt

Convert femtowatt (fW) to picowatt (pW). Use an editable power converter, conversion formula, and reference table.

0.001

1 fW = 0.001 pW

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Conversion formula

pW = fW × 0.001

One femtowatt equals 0.001 picowatt. Multiply your value in femtowatt by this factor to get picowatt. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 femtowatt:
5 × 0.001 = 0.005 pW

Conversion table

femtowatt (fW)picowatt (pW)
0.010.00001
0.10.0001
10.001
20.002
50.005
100.01
250.025
500.05
1000.1
10001

About these measurements

Power is the rate of energy transfer.

The base reference used here is the watt. One femtowatt is 1e-15 base units; one picowatt is 1e-12 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 fW to pW?

Multiply the quantity in fW by 0.001. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the picowatt to femtowatt 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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