microwatt to femtowatt
Convert microwatt (μW) to femtowatt (fW). Use an editable power converter, conversion formula, and reference table.
1 μW = 1,000,000,000 fW
Conversion formula
One microwatt equals 1,000,000,000 femtowatt. Multiply your value in microwatt by this factor to get femtowatt. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 microwatt:5 × 1,000,000,000 = 5,000,000,000 fW
Conversion table
| microwatt (μW) | femtowatt (fW) |
|---|---|
| 0.01 | 10,000,000 |
| 0.1 | 100,000,000 |
| 1 | 1,000,000,000 |
| 2 | 2,000,000,000 |
| 5 | 5,000,000,000 |
| 10 | 10,000,000,000 |
| 25 | 25,000,000,000 |
| 50 | 50,000,000,000 |
| 100 | 100,000,000,000 |
| 1000 | 1e+12 |
About these measurements
Power is the rate of energy transfer.
The base reference used here is the watt. One microwatt is 0.000001 base units; one femtowatt is 1e-15 base units.
Important distinctions
Mechanical horsepower and metric horsepower are distinct units.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert μW to fW?
Multiply the quantity in μW by 1,000,000,000. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the femtowatt to microwatt converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
