A Kilowatt (kW) equals 1,000 watt(s), a scaled unit of electrical power used for kilo-scale electrical work.
Kilowatts to Femtowatts
Convert Kilowatt (kW) to Femtowatt (fW) instantly with an exact formula, conversion table, and FAQ.
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Convert kilowatts (kW) 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 = kW × 1.000000e+18
Results update instantly for Kilowatts to Femtowatts conversions.
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Formula
fW = kW × 1.000000e+18
kW = fW × 1.000000e-18
Conversion table
| 1 kW | 1.000000e+18 fW |
| 5 kW | 5.000000e+18 fW |
| 10 kW | 1.000000e+19 fW |
| 20 kW | 2.000000e+19 fW |
| 50 kW | 5.000000e+19 fW |
| 100 kW | 1.000000e+20 fW |
| 500 kW | 5.000000e+20 fW |
| 1000 kW | 1.000000e+21 fW |
Related conversions
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How the formula works
Both kilowatt and femtowatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in kilowatts by 1.000000e+18 to get femtowatts. To reverse the conversion, multiply a femtowatt value by 1.000000e-18 to get back to kilowatts.
Frequently asked questions
What is Kilowatt (kW)?
A Kilowatt (kW) equals 1,000 watt(s), a scaled unit of electrical power used for kilo-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 kilowatts to femtowatts?
Multiply the kilowatt value by 1.000000e+18 to get the equivalent in femtowatts. For example, 5 kW × 1.000000e+18 = 5.000000e+18 fW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e+18 is an exact, non-rounded value.
Can I convert femtowatts back to kilowatts?
Yes. Divide the femtowatt value by 1.000000e+18, or multiply it by 1.000000e-18, to get kilowatts.
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About converting kilowatts to femtowatts
A Kilowatt (kW) equals 1,000 watt(s), a scaled unit of electrical power used for kilo-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 kilowatts 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.