A Femtowatt (fW) equals 1e-15 watt(s), a scaled unit of electrical power used for femto-scale electrical work.
Femtowatts to Attowatts
Convert Femtowatt (fW) to Attowatt (aW) instantly with an exact formula, conversion table, and FAQ.
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Convert femtowatts (fW) to attowatts (aW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
aW = fW × 1000
Results update instantly for Femtowatts to Attowatts conversions.
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Formula
aW = fW × 1000
fW = aW × 0.001
Conversion table
| 1 fW | 1000 aW |
| 5 fW | 5000 aW |
| 10 fW | 10000 aW |
| 20 fW | 20000 aW |
| 50 fW | 50000 aW |
| 100 fW | 100000 aW |
| 500 fW | 500000 aW |
| 1000 fW | 1.000000e+06 aW |
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How the formula works
Both femtowatt and attowatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in femtowatts by 1000 to get attowatts. To reverse the conversion, multiply a attowatt value by 0.001 to get back to femtowatts.
Frequently asked questions
What is Femtowatt (fW)?
A Femtowatt (fW) equals 1e-15 watt(s), a scaled unit of electrical power used for femto-scale electrical work.
What is Attowatt (aW)?
An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
How do I convert femtowatts to attowatts?
Multiply the femtowatt value by 1000 to get the equivalent in attowatts. For example, 5 fW × 1000 = 5000 aW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1000 is an exact, non-rounded value.
Can I convert attowatts back to femtowatts?
Yes. Divide the attowatt value by 1000, or multiply it by 0.001, to get femtowatts.
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About converting femtowatts to attowatts
A Femtowatt (fW) equals 1e-15 watt(s), a scaled unit of electrical power used for femto-scale electrical work. An Attowatt (aW) equals 1e-18 watt(s), a scaled unit of electrical power used for atto-scale electrical work.
Use this calculator to move between femtowatts and attowatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.