Convert femtowatt to watts
Femtowatt
The femtowatt (fW) is a unit of power equal to 10−15 watts, representing one of the smallest practical power levels encountered in experimental physics and engineering. It is used to characterise the sensitivity of optical detectors, quantum optical systems, and biological measurement instruments capable of detecting near-single-photon signals. Bolometers used in radio astronomy and cosmic microwave background research operate at sensitivity levels approaching femtowatts.
Watt
The watt (symbol: W ) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer. In SI base units, the watt is described as kg⋅m 2 ⋅s −3 , which can be demonstrated to be coherent by dimensional analysis. The watt is named after James Watt, an 18th-century Scottish inventor.
Femtowatt to Watt conversion table
| Femtowatt | Watt | Watt | Femtowatt |
|---|---|---|---|
| 1 | 1E-15 | 1 | 1E+15 |
| 2 | 2E-15 | 2 | 2E+15 |
| 3 | 3E-15 | 3 | 3E+15 |
| 5 | 5E-15 | 5 | 5E+15 |
| 10 | 1E-14 | 10 | 1E+16 |
| 20 | 2E-14 | 20 | 2E+16 |
| 25 | 2.5E-14 | 25 | 2.5E+16 |
| 50 | 5E-14 | 50 | 5E+16 |
| 100 | 1E-13 | 100 | 1E+17 |
| 250 | 2.5E-13 | 250 | 2.5E+17 |
| 500 | 5E-13 | 500 | 5E+17 |
| 1000 | 1E-12 | 1000 | 1E+18 |
How to convert Femtowatt to Watt
1 fW = 1E-15 W. To convert any value, multiply it by 1E-15. For example, 25 fW = 2.5E-14 W.
Frequently asked questions
- How many W are there in one fW?
- One fW is equal to 1E-15 W.
- How do you convert Femtowatt to Watt?
- Multiply the value in Femtowatt by 1E-15 to get the result in Watt.
- How much is 25 fW in W?
- 25 fW is equal to 2.5E-14 W.
- How do you convert Watt back to Femtowatt?
- Divide by the same factor: multiply the value in Watt by 1E+15 to get Femtowatt.