Watt to Femtowatt Converter

Quick Answer

1 W = 1.0000e+15 fW

Formula: Femtowatt = Watt x 1.0000e+15

Formula verifiedLive calculation

From (Watt)W

To (Femtowatt)

1.0000e+15fW

Quick values

Watt to Femtowatt Conversion Table

Watt (W)	Femtowatt (fW)	Formula Step
1	1.0000e+15	1 x 1.0000e+15
2	2.0000e+15	2 x 1.0000e+15
3	3.0000e+15	3 x 1.0000e+15
4	4.0000e+15	4 x 1.0000e+15
5	5.0000e+15	5 x 1.0000e+15
6	6.0000e+15	6 x 1.0000e+15
7	7.0000e+15	7 x 1.0000e+15
8	8.0000e+15	8 x 1.0000e+15
9	9.0000e+15	9 x 1.0000e+15
10	1.0000e+16	10 x 1.0000e+15

Convert Watt to Other Power Units

Watt to Zettawatt Watt to Zeptowatt Watt to Yottawatt Watt to Yoctowatt Watt to Ton of Refrigeration Watt to Ton of Air Conditioning Watt to Terawatt Watt to Pound Square Foot per Cubic Second Watt to Poncelet Watt to Picowatt Watt to Pferdestärke Watt to Petawatt Watt to Newton Meter per Second Watt to Nanowatt Watt to Milliwatt Watt to Microwatt Watt to Megawatt Watt to Lusec Watt to Kilowatt Watt to Kilocalorie per Second Watt to Kilocalorie per Minute Watt to Kilocalorie per Hour Watt to Joule per Second Watt to Joule per Minute Watt to Joule per Hour Watt to Horsepower (Water)Watt to Horsepower (UK)Watt to Horsepower (Metric)Watt to Horsepower (Mechanical)Watt to Horsepower (Electric)Watt to Horsepower (Boiler)Watt to Horsepower (550 ft·lbf/s)Watt to Horsepower Watt to Hectowatt Watt to Gigawatt Watt to Foot-Pound Force per Second Watt to Foot-Pound Force per Minute Watt to Foot-Pound Force per Hour Watt to Femtowatt Watt to Exawatt Watt to Erg per Second Watt to Deciwatt Watt to Decawatt Watt to Clusec Watt to Cheval Vapeur Watt to Centiwatt Watt to Calorie per Second Watt to BTU per Second Watt to BTU per Minute Watt to BTU per Hour Watt to Attowatt

Frequently Asked Questions

How do you convert Watt to Femtowatt?

Use the formula Femtowatt = Watt x 1.0000e+15. For example: 1 W = 1.0000e+15 fW. Our calculator handles this automatically.

How many Femtowatts in a Watt?

1 W = 1.0000e+15 fW.

Why would I need to convert Watt to Femtowatt?

Converting Watt to Femtowatt is useful for scientific calculations, engineering projects, international trade, and everyday measurements where different unit systems are used.

Power reference calculator

Reference factors

1.0000e+15

fW per W

1.0000e-15

W per fW

Formula audit

Femtowatt = Watt x 1.0000e+15

1 W = 1.0000e+15 fW

Results use the shared conversion engine and retain the full conversion rule before display formatting.

Unit reference

CategoryPower

Input unitWatt (W)

Output unitFemtowatt (fW)