A Yoctowatt (yW) equals 1e-24 watt(s), a scaled unit of electrical power used for yocto-scale electrical work.
Yoctowatts to Femtowatts
Convert Yoctowatt (yW) to Femtowatt (fW) instantly with an exact formula, conversion table, and FAQ.
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Convert yoctowatts (yW) to femtowatts (fW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Femtowatt (fW) equals 1e-15 watt(s), a scaled unit of electrical power used for femto-scale electrical work.
fW = yW × 1.000000e-09
Results update instantly for Yoctowatts to Femtowatts conversions.
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Formula
fW = yW × 1.000000e-09
yW = fW × 1.000000e+09
Conversion table
| 1 yW | 1.000000e-09 fW |
| 5 yW | 5.000000e-09 fW |
| 10 yW | 1.000000e-08 fW |
| 20 yW | 2.000000e-08 fW |
| 50 yW | 5.000000e-08 fW |
| 100 yW | 1.000000e-07 fW |
| 500 yW | 5.000000e-07 fW |
| 1000 yW | 0.000001 fW |
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How the formula works
Both yoctowatt and femtowatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in yoctowatts by 1.000000e-09 to get femtowatts. To reverse the conversion, multiply a femtowatt value by 1.000000e+09 to get back to yoctowatts.
Frequently asked questions
What is Yoctowatt (yW)?
A Yoctowatt (yW) equals 1e-24 watt(s), a scaled unit of electrical power used for yocto-scale electrical work.
What is Femtowatt (fW)?
A Femtowatt (fW) equals 1e-15 watt(s), a scaled unit of electrical power used for femto-scale electrical work.
How do I convert yoctowatts to femtowatts?
Multiply the yoctowatt value by 1.000000e-09 to get the equivalent in femtowatts. For example, 5 yW × 1.000000e-09 = 5.000000e-09 fW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e-09 is an exact, non-rounded value.
Can I convert femtowatts back to yoctowatts?
Yes. Divide the femtowatt value by 1.000000e-09, or multiply it by 1.000000e+09, to get yoctowatts.
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About converting yoctowatts to femtowatts
A Yoctowatt (yW) equals 1e-24 watt(s), a scaled unit of electrical power used for yocto-scale electrical work. A Femtowatt (fW) equals 1e-15 watt(s), a scaled unit of electrical power used for femto-scale electrical work.
Use this calculator to move between yoctowatts and femtowatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.